85.0k views
0 votes
X^2 + x - 56 = 0
Solve for x

User JMDE
by
4.8k points

2 Answers

1 vote

Answer:

x= 7, -8

Explanation:

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

Hope this helps!!!

User Arshad Ali
by
5.6k points
6 votes

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

Explanation:

User Yincrash
by
5.4k points