factorise expression 49x^ -36
Answers
Answered by
2
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Step-by-step explanation:
7^ x^ - 6^
(7x)^ -6^
(7x - 6 ) (7x + 6)
Answered by
2
Step-by-step explanation:
a^2-b^2 = (a+b)(a-b)
49x^2-36
= (7x)^2-(6)^2
= (7x+6)(7x-6)
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