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3 years ago

X^2 + x - 56 = 0 Solve for x

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

7 0

Answer:

x= 7, -8

Step-by-step explanation:

move all terms to the left side and set equal to 0. then set each factor equal to 0

Hope this helps!!!

NISA [10]3 years ago

4 0

Answer: x = 7 or x = -8

x² + x - 56 = 0

⇔ x² + 8x - 7x - 56 = 0

⇔ x(x + 8) - 7(x + 8) = 0

⇔ (x - 7)(x + 8) = 0

⇔ x - 7 = 0

or x + 8 = 0

⇔ x = 7 or x = -8

Step-by-step explanation:

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