Question

Denise says that it's more appropriate to use the method of factoring than extracting square roots in solving the quadratic equations 9x²-25=0. Do you agree with Denise? Explain your answer.​

Answer 1

9x²-25=0

9x²+0x-25=0

9x²+15x-15x-25 =0

3x(3x+5)-5(3x+5)=0

3x-5=0 or 3x+5=0

x= 5/3 or x= -5/3

Answer 2

Answer:

9x^2- 25=0

{3x}^2-5^2=0

(3x-5) (3x + 5) =0

x= 5/3 x= -5/3