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Test: Factorisation- 2 - Class 8 MCQ


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15 Questions MCQ Test Mental Mathematics for Class 8 - Test: Factorisation- 2

Test: Factorisation- 2 for Class 8 2024 is part of Mental Mathematics for Class 8 preparation. The Test: Factorisation- 2 questions and answers have been prepared according to the Class 8 exam syllabus.The Test: Factorisation- 2 MCQs are made for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Factorisation- 2 below.
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Test: Factorisation- 2 - Question 1

Simplify : x2 – 10x – 96.

Detailed Solution for Test: Factorisation- 2 - Question 1
- Start with the quadratic expression \( x^2 - 10x - 96 \).
- Identify two numbers that multiply to -96 and add up to -10. These numbers are -16 and +6.
- Rewrite the expression using these numbers: \( (x - 16)(x + 6) \).
- Therefore, the simplified form is (x – 16) (x + 6).

Answer: d
Test: Factorisation- 2 - Question 2

Simplify:
 

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Test: Factorisation- 2 - Question 3

Factorize : x2 + 4x – 21.

Test: Factorisation- 2 - Question 4

Simplify :

Test: Factorisation- 2 - Question 5

Factorize : 3x2 – 10x + 8.

Test: Factorisation- 2 - Question 6

Complete it : x2 + 25x + 84 = (x + 21) × _______

Test: Factorisation- 2 - Question 7

Complete it : x2 – x – 156 = (_______) × (x + 12).

Test: Factorisation- 2 - Question 8

Factorize : x2 – 30x – 216.

Test: Factorisation- 2 - Question 9

Find x2 – y2 if x = 5, y = 7.

Test: Factorisation- 2 - Question 10

Find y if, (2x + 7) (2x – 7) + y = 4x2

Test: Factorisation- 2 - Question 11

Find the value of : (3α + b)2 – (3α – b)2.

Test: Factorisation- 2 - Question 12

Find z if, (x + 4) (x – 5) – z = x(x – 1)

Test: Factorisation- 2 - Question 13

Find the value of 81x2 + 36xy + 4y2 if x = 1/9, y = -1/2

Test: Factorisation- 2 - Question 14

Put appropriate sign in the place of boxes

Test: Factorisation- 2 - Question 15

Find the quotient : z(4y2 – 64) ÷ 4z(y - 4)

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