Question

$x { }^{2} + - 4 + 3$
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Answer 1

what to do in this question

Answer 2

QUESTION :

• x²-4+3

ANSWER

${x}^{2} - 4 + 3 \\ = {x}^{2} - 1 \: \: \: \: \: \: \: \: \: \: \: \: \: \\ = {x}^{2} - 1 {}^{2} \: \: \: \: \: \: \: \: \: \: \: \: \\ \: \: = (x + 1)(x - 1)$

FORMULA USED :

(a²-b²)= (a+b)(a-b)