Solve the following quadratic equation.
(x+4)^2=25

A. x=9 and x=-1

B. x=-9 and x=-1

C. x=-9 and x=1

D. x=9 and x=1

C. 1 and -9

Step-by-step explanation:

(x+4)² = 25

x+4 = 5 x+4 = -5

x = 1 x = -9

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17