Question

D^2 + 18d - 63
$x^2 + 18x - 63$
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Answer 1

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Step-by-step explanation:

Answer 2

Answer:

Hey mate Here's your answer:

Step-by-step explanation:

x² + 18x - 63 = 0

x² + 21x - 3x - 63 = 0

x(x + 21) - 3(x + 21) = 0

(x - 3)(x + 21) = 0

x - 3 = 0

x = 3.

x + 21 = 0

x = -21.

So x = 3 or x = -21.

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