Question

2x square+ 15x+28=0.Solve by

completing square method​

Answer 1

Step-by-step explanation:

2x²+15x+28=0

=>2x²+8x+7x+28=0

=>2x(x+4)+7(x+4)

=>(2x+7)(x+4)

HOPE IT HELPS...

Answer 2

♡Answer♡:-

$2 {x}^{2} + 15x + 28 = 0 \\ 2 {x}^{2} + (7 + 8)x + 28 = 0 \\ 2 {x}^{2} + 7x + 8x + 28 = 0 \\ x(2x + 7) + 4(2 x + 7) = 0 \\ (2x + 7)(x + 4) = 0 \\ 2x + 7 = 0 \: \: and \: \: x + 4 = 0 \\ x = \frac{ - 7}{2} \: \: and \: \: x = - 4$

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