Question

5x square minus 4(x square +1)

Answer 1

Answer:

x^2 - 1

Step-by-step explanation:

5x^2 - 4(x^2 +1)

5x^2 - 4x^2 - 1

x^2 - 1

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Answer 2

HERE IS YOUR ANSWER :-

$5 {x}^{2} - 4 ( {x}^{2} + 1) = 0 \\ \\ = > 5 {x}^{2} - 4 {x}^{2} - 4 = 0\\ \\ = > {x}^{2} - 4 = 0\\ \\ = > (x + 2)(x - 2) =0 \\ \\ hence \: we \: get \: \\ \: \: \: \: \: \: \: \: \: \: \: \: \: x = 2 \: \: or \: \: x = - 2$

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