Solve the quadratic equation for x. What is one of the roots? (x + 6)^2 = 49
2 answers:
Answer:
Solve for a.
(a+6)2=49
−13 and 1
−1 and 13
−36√ and 36√
−43−−√ and 43−−√
your answer would be -13 and 1
Answer:
x equals -1 and it also equals -13. They are both considered the roots.
Step-by-step
- (x+6)^2= 49 to get rid of the exponent square root each side of the equation.
- (x+6)= √49 Find square root of 49.
- (x+6)= ±7 It could be positive 7 or -7 because both of them squared equal 49. Now solve for each possible equation, (x+6)= 7 and (x+6)=-7.
- (x+6)=7 subtract 6 from each side.
- x= 1
- (x+6)=-7 Subtract 6 from each side.
- x=-13
- So the answers are -13 and 1.
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Take 180 subtract 47 and 43. You get 90. So it would be C.