Question

x square - 2 x minus 15 is equal to zero

Answer 1

ⓢⓞⓛⓤⓣⓘⓞⓝ 

Question :-

To find the value of x in the equation

$x {}^{2} - 2x - 15$

$<big > answer....$


splitting the middle term



$x {}^{2} - 5x + 3x - 15$

$x(x - 5) + 3(x - 5)$

$(x + 3)(x - 5)$

So, x = -3 & 5

Hope it helps you

$<b > prabhudutt$

Answer 2

Here is your answer.............

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$given \: equation \\ \\ = {x}^{2} - 2x - 15 \\ \\ using \: middle \: term \: splitting \: method \: \\ \\ we \: get \\ \\ = {x}^{2} + 3x - 5x - 15 \\ \\ = x(x + 3) - 5(x + 3) \\ \\ = (x - 5)(x + 3) \\ \\ thus \: \\ \\ x = 5 \: and \: - 3$

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Hope this helps you.......