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
Answers
Answered by
2
Answer:
The correct answer is 3 (c)
Answered by
4
Answer:
the correct ans is 3 (c) is right
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