x square - 9 = zero factorise
Answers
Answered by
1
Hey friend (^_^)
Here is your answer
x²-9=0
(x)²-(3)²=0
[USING a²-b²=(a+b)(a-b) ]
(x+3)(x-3)=0
Hope this helps you
Here is your answer
x²-9=0
(x)²-(3)²=0
[USING a²-b²=(a+b)(a-b) ]
(x+3)(x-3)=0
Hope this helps you
Answered by
0
x^2-9
can also be written as
x^2-(3)^2
so by using identity
a^2-b^2=(a-b)(a+b)
we get answer as
(x+3)(x-3)
can also be written as
x^2-(3)^2
so by using identity
a^2-b^2=(a-b)(a+b)
we get answer as
(x+3)(x-3)
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