NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

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IMPORTANT

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The prime factor form of $70$ is $2 \times$ $\times 7$ .

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Important Questions on Factorisation

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IMPORTANT

NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

In an algebraic expression, terms are formed by the _____ of variables and constants. (product/addition)

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IMPORTANT

NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

In the algebraic expression

- 4 x y + 7 x

, find the factors formed by the term

- 4 x y

.

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IMPORTANT

NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

In an algebraic expression, we use the word ‘_____’ in place of ‘prime’.

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NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

3 \times a \times (a + 2)

is the _____ form of

(3 a^{2} + 6 a) .

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IMPORTANT

NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

3 (2 x^{2} + x)

is not in the irreducible form, since the factor

2 x^{2} + x

can be further expressed as _____ .

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IMPORTANT

NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 1

Irreducible factors of

10 x (x + 2) (y + 3)

are _____ .

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NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 2

Complete the following table.

Algebraic expressions	Factorisation by common factors
$2 x + 4$	$2 \times x + 2 \times 2 = 2 (x + 2)$
$5 x y + 10 x$

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NCERT Practice Workbook Mathematics>Chapter 14 - Factorisation>Worksheet 1>Q 2

Complete the following table.

Algebraic expressions	Factorisation by common factors
$2 x + 4$	$2 \times x + 2 \times 2 = 2 (x + 2)$
$12 a^{2} b + 15 a b^{2}$