Hi there
x² + 7x = -10
x² + 7x + 10 = 0
Now, we can factor left side
(x+2)(x+5) = 0
Set factors equal to 0
x + 2 = 0 or x + 5 = 0
x = 0 - 2 or x = 0 - 5
x = -2 or x =-5
I hope that's help !
Answer:
C. Both statements are true
Answer:
Angle A= 30
Step-by-step explanation:
A triangle has to equal 180 degrees so the first thing you have to do is subtract 180-70. You get 110 so the other two angles in the triangle have to equal 110.
Now you can solve the expression x+40+x+90=110
First combine like terms 2x+130=110
Then subtract 130 from both sides 2x=-20
Then divide by 2 x=-10
Then solve for a -10+40=30
So angle A = 30
