Question

GUYS I REALLY NEED HELP!!
THESE ARE MY LAST 2 QUESTIONS AND I DONT KNOW. PLEASE BE SURE AND I WILL GIVE BRAINLIEST PLEASE SHARE YOUR SMARTNESS!!


3. Which equation contains a difference of squares?
A) 9x^2=69
B) 4x^2-80=0
C) 36x^2-100=0


4. Which factoring pattern should you use to solve 225x^2 -400=0? why?

A) Use the pattern (√a*x + √c) (√a*x -√c)=0 because the values a and c are perfect squares the value of b =0 and the sign between the two terms is subtraction.

B) use the pattern (√a*x ± √c)^2=0 because l b l = √a √c

C) use the pattern (√a*x ± √c)^2=0 because l b l = 0 and the values of a and c are perfect squares

Answer 1

Answer:

The correct answer is 3 (c)

Answer 2

Answer:

the correct ans is 3 (c) is right