Solve x2 + 10x = -21. x = 7 and x = 3 x = -7 and x = -3 x = -7 and x = 3 x = 7 and x = -3

4 answers
Question:

Solve x2 + 10x = -21.
x = 7 and x = 3
x = -7 and x = -3
x = -7 and x = 3
x = 7 and x = -3

Answers

Answer is x = -7 and x = -3

 x2 + 10x = -21
 x2 + 10x + 21 = 0
(x +3) (x +7) = 0

(x +3) = 0
and
(x + 7) = 0
so x = - 3 and x = -7

This is too many for a question..

Step-by-step explanation:

Multiply 9 and 67. then multiply 3 with 67. lastly the answer that you got for 9x67 is to be subtracted by the answer you got for 3x67

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.

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