Exercise 6 F
Q1 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of
Algebraic Expressions | myhelper
Question 1
$a^{2}+5 a+6$
Sol :
Q1 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 2
$x^{2}+7 x+12$
Sol :
Q3 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 3
$m^{2}+13 m+42$
Sol :
Q4 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 4
$a^{2}+25 a-54$
Sol :
Q5 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 5
$t^{2}+9 t-36$
Sol :
Q6 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 6
$a^{2}+5 a-50$
Sol :
Q7 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 7
$x^{2}-4 x-5$
Sol :
Q8 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 8
$y^{2}-10 y+16$
Sol :
Q9 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 9
$x^{2}-2 x-24$
Sol :
Q10 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 10
$y^{2}+2 y-48$
Sol :
Q11 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 11
$n^{2}-3 n-40$
Sol :
Q12 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 12
$y^{2}-11 y+24$
Sol :
Q13 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 13
$48+22 x-x^{2}$
Sol :
Q14 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 14
$x^{2}-29 x+204$
Sol :
Q15 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 15
$p^{2}-5 p-176$
Sol :
Q16 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 16
$n^{2}-19 n-92$
Sol :
Q17 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 17
$j^{2}-11 j-102$
Sol :
Q18 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 18
$2 a^{3}+10 a^{2}-28 a$ [Hint. First take out the common factor $2 a$.]
Sol :
Q19 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 19
$12 b+15-3 b^{2}$
Sol :
Q20 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 20
$3 c^{5}-18 c^{4}-48 c^{3}$
Sol :
Q21 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 21
$b^{2} c^{3}+8 b c^{4}+12 c^{5}$
Sol :
Q22 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 22
$a^{4}-5 a^{2}-36$
Sol :
Q23 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 23
$y^{4}+4 y^{2}-32$
Sol :
Multiple Choice Questions (MCQs)
Q24 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 24
Which is the correct factorisation of $x^{2}-10 x-24$ ?
(a) $(x-2)(x+12)$
(b) $(x+4)(x-6)$
(c) $(x-4)(x-6)$
(d) $(x+2)(x-12)$
Sol :
Q25 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 25
One of the factors of $(x-y)^{2}-4(x-y)-45$ is
(a) $(x-y+9)$
(b) $(x-y-5)$
(c) (x-y-9)
(d) (x+y+5)
High Order Thinking Skills (HOTS)
Q26 | Ex-6F | Class 8 | SChand Composite Maths | Factorisation of Algebraic Expressions | myhelper
Question 26
Which value of $b$ would make $y^{2}+b y-24$ factorable ?
(a) 14
(b) 11
(c) 5
(d) 25
Sol :
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