Question

factorise x squared - 25​

Answer 1

Answer:

(x-5)(x+5)

Step-by-step explanation:

x²-25

x²-5²

a²-b²=(a-b)(a+b)

x²-5²=(x-5)(x+5)

So x²-25=(x-5)(x+5)

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Answer 2

$\huge\color{red}\boxed{\colorbox{aqua}{Question}}$

• factorise x²-25.

$\huge\mathcal{\fcolorbox{red}{azure}{\red{identity\:used:}}}$

$\small\fbox\pink{(a)²-(b)²=(a+b)(a-b)}$

$\huge\sf\underline\red{Solution:-}$

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$x {}^{2} - 25 \\ \\ = (x) {}^{2} - (5) {}^{2} \\ \\ = (x + 5) \: (x - 5)$

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