Factorise x2-4 x-4 A- x-2x-3B- x-1x-2C- x-4x-2D- x-2x-2

The correct option is D (x+2) (x+2)The terms in the expression nbsp;x^2 + 4x 4 are nbsp;x^2 , 4x and 4. Therefore, nbsp; x^2 + 4x + 4 nbsp; = (x+2) ...

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Standard VIII

Mathematics

Multiplication of Binomials

Factorise x2+...

Question

Factorise $x^{2} + 4 x + 4$ .

(x + 2) (x + 2)

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(x + 4) (x + 2)

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(x + 2) (x + 3)

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(x + 1) (x + 2)

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Solution

The correct option is A $(x + 2) (x + 2)$
The terms in the expression $x^{2} + 4 x - 4$ are $x^{2}$ , 4x and 4.

Therefore, $x^{2} + 4 x + 4 = (x + 2) (x + 2)$

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Factorise x2+4x+4.

The correct option is A (x+2)(x+2)The terms in the expression x2+4x−4 are x2 , 4x and 4. Therefore, x2+4x+4=(x+2)(x+2)

Factorise $x^{2} + 4 x + 4$ .

The correct option is A $(x + 2) (x + 2)$
The terms in the expression $x^{2} + 4 x - 4$ are $x^{2}$ , 4x and 4.

Therefore, $x^{2} + 4 x + 4 = (x + 2) (x + 2)$