Use suitabl identity to solue
(3+4y)(3-4y)
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Step-by-step explanation:
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Answered by
1
Answer:
9-16y
Step-by-step explanation:
formula (a+b) (a-b) =a²- b²
a=3
b=4y
simplify _. a²-b²
3²-4y²
9 - 16y²
hence proved
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