Factorise: a² - 4
Solu. = (a-2)²
= (a+2) (a-2)
Is this correct?? Pls tell fast tom is my test
Answers
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3
its ans. is correct but first way is wrong it should be as this
a^2-2^2......and all its right
a^2-2^2......and all its right
Answered by
0
a²-4
a²-2²
From formula
a²-b²=(a+b)(a-b)
So,
(a+2)(a-2) Ans
a²-2²
From formula
a²-b²=(a+b)(a-b)
So,
(a+2)(a-2) Ans
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