What is the solution to (x-2) (x+5)= 18
2 answers:
<h3>Answer:</h3>
x=4
<h3>Explanation:</h3>
(4-2)(4+5)=18
2*9=18
I hope it helped you
Answer:
(x - 2) (x + 5) = 18
⇔5x + x² - 2x - 10 = 18
⇔x² + 3x = 18 + 10
⇔x² + 3x = 28
⇔x² + 3x - 28 = 0
⇔x² + 4x - 7x - 28= 0
⇔x(x +4) - 7(x + 4)= 0
⇔(x - 7) (x + 4) = 0
⇔x - 7 = 0 or x + 4 = 0
⇔x = 7 or x = -4
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