Question

solve for x: 4x^2-64=0

Answer 1

Step-by-step explanation:

• 4x^2 - 64 = 0
• 4x^2. = 64
• x^2 = 64/4
• x^2 = 16
• x = √16
• x = +- 4
• x=-4 and 4
• hope it helps you

Answer 2

Answer:

answer is -4 and +4

Step-by-step explanation:

4x^2-64=0

4x^2=64

x^2=64/4

x^2=16

x=+-4

x= -4 and +4