Question

$4z {}^{2} + 18z - 10 = 0$
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Answer 1

Answer:

bro this is method

Step-by-step explanation:

you try this method

Answer 2

$\huge\underline\mathfrak\red{Answer}$

$4 {z}^{2} + 18z \: - 10 \: = 0 \\ 4 {z}^{2} + 20z \: - 2z \: - 10 \: = 0 \\ 4z(z \: + 5) - 2(z \: + 5) = 0 \\ 4z - 2 = 0 \\ 4z = 2 \\ z = \frac{2}{4} \\ z \: = \frac{1}{2} \\ z + 5 = 0 \\ z = - 5$