Question

What are the real roots of x^2+10x+16=0?

A. 4 & 4
B. 2 & 8
C. -4 & -4
D. -8 & -2

Answer 1

You can graph it using desmos or a graphing calculator.
The x-intercepts are the zeros (roots) of the graph.

Answer 2

I don't have a graphing calculator

Answer 3

Factor it. (x+8)(X+2)=0. Set each factor equal to zero and solve for x.

Answer 4

Okay so factor left side of equation.
(x+2)(x+8)=0
and set factors equal to 0 x+2=0 or x+8=0
and for ur answer u should get
x=−2 or x=−8