Question

$x{2} + x - 20 = 0$
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Answer 1

$<h1 > heya$

$<h3 > answer.....$

$x {}^{2} + 5x - 4x - 20 \\ \\ x(x + 5) - 4(x + 5) \\ \\ (x + 5)(x - 4)$

so, x = -5 & 4

Hope it helps you

@ Prabhudutt