Question

$2x {}^{2} + 3x - 20 = 0$
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Answer 1

Question -

Factorise -

2x² + 3x - 20

Answer == >

2x² + 3x - 20

2x² + 8x - 5x - 20

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

(2x-5)(x+4)

Factors Are -

2x - 5 = 0

2x = 5

X = 5/2

And

x+4 = 0

x= - 4