factorise 9x^+16y^-24xy
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I think you wanted to ask
9x^2+16y^2-24xy
You should use the formula:
(a-b)^2=a^2+b^2-2ab
Here the question is in the RHS form:
So,here
a=3x and b=4y
9x^2+16x^2-24xy
=(3x)^2+(4y)^2-2.(3x).(4y)
=(3x-4y)^2
Note: "." stands for multiplication
9x^2+16y^2-24xy
You should use the formula:
(a-b)^2=a^2+b^2-2ab
Here the question is in the RHS form:
So,here
a=3x and b=4y
9x^2+16x^2-24xy
=(3x)^2+(4y)^2-2.(3x).(4y)
=(3x-4y)^2
Note: "." stands for multiplication
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