Respuesta :
Answer:
Subtract 24 from both sides.
Step-by-step explanation:
x2+8x=24
Step 1: Subtract 24 from both sides.
x2+8x−24=24−24
x2+8x−24=0
For this equation: a=1, b=8, c=-24
1x2+8x+−24=0
Step 2: Use quadratic formula with a=1, b=8, c=-24.
x=
−b±√b2−4ac
2a
x=
−(8)±√(8)2−4(1)(−24)
2(1)
x=
−8±√160
2
x=−4+2√10 or x=−4−2√10
Answer:
x=−4+2√10 or x=−4−2√10
Answer:
+ 16
Step-by-step explanation:
x² + 8x = 24
to complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(4)x + 16 = 24 + 16
