Quadratic Equations By Extracting Square Root., 4x\Xb2-225=0

Quadratic equations by extracting Square root.

4x²-225=0

 

Answer: x=15/2

Step-by-step explanation:

4x²-225=0

Transpose

4x² = 225

Square both sides

√4x² = √225

Solve

2x = 15

x=15/2