4x²-144=0 by extracting square root
Answers
Answered by
1
Answer:
(2x²-12)²=48
Step-by-step explanation:
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Answered by
4
Answer:
answer is: (2x)² - (12)²
Step-by-step explanation:
= 4x² - 144 =0
= (2x)²- (12)² =0
now using identity III i.e. a²-b²=(a+b)(a-b)
= (2x+12)(2x-12) =0
= 2x(2x-12) + 12(2x-12)
= 4x² -24 + 24x - 144 =0
= 4x² -144 =0
Hence, by extracting square root 4x²-144=0
hope it helps
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