Factorize 100 - 9x square
Answers
Answered by
46
100-9x^2
=(10)^2 - (3x)^2
= (10+3x) (10-3x)
=(10)^2 - (3x)^2
= (10+3x) (10-3x)
Answered by
34
Hey there !!!!
=100-9x²
=10²-(3x)²
It is of the form a²-b²=(a+b)(a-b)
So,
=(10+3x)(10-3x)
If,
(10+3x)(10-3x)=0
Then
10+3x=0 10-3x=0
x=-10/3 x=10/3
Hope this helped you................
=100-9x²
=10²-(3x)²
It is of the form a²-b²=(a+b)(a-b)
So,
=(10+3x)(10-3x)
If,
(10+3x)(10-3x)=0
Then
10+3x=0 10-3x=0
x=-10/3 x=10/3
Hope this helped you................
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