Math, asked by yjjjeeaxbn, 1 year ago

factorise 3xsquare_12x

Answers

Answered by Anonymous
1
Hi

here is my answer

3x² - 12x

= 3x ( x - 4 )

so

if we want to find value of x then

3x ( x - 4 ) = 0

=> x - 4 = 0

=> x = 4

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yjjjeeaxbn: my question is to do by taking common factor and then using identities please do
Answered by snehitha2
0
Hi friend!!

» 3x² - 12

» 3(x²-4)

» 3(x²-2²)

» 3(x-2)(x+2) {a²-b² = (a+b)(a-b)}

The factors of 3x²-12x are 3,x-2 and x+2

If it is 3x²-12x, follow the process

» 3x(x-4)

Then the factors are 3x and x-4

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