Question

8 x square minus 22 x minus 21 equal zero​

Answer 1

Answer:

$8x { }^{2} - 22x = 0$

It can be possible if x =0

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Answer 2

Answer:

$8 {x}^{2} - 22x - 21 = 0 \\ 8 {x}^{2} - (28 - 6)x - 21 = 0 \\ 8 {x}^{2} - 28x + 6x - 21 = 0 \\ 4x(2x - 7) + 3(2x - 7) = 0 \\ (4x + 3)(2x - 7) \\ x = \frac{ - 3}{4} \: x = \frac{7}{2} \\ hope \: it \: will \: help \: you$