Question

y² -7y -12 factorise ​

Answer 1

Answer:

Hi mate

i am giving you hint how to solve

Step-by-step explanation:

The first step of factorising an expression is to 'take out' any common factors which the terms have. So if you were asked to factorise x² + x, since x goes into both terms, you would write x(x + 1) . This video shows you how to solve a quadratic equation by factoring.

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thanks

Answer 2

Answer:

Y 2 −7Y+12

=Y 2 −3y−4Y+12

=Y(Y−3)−4(Y−3)

=(Y−3)(Y−4)

⇒Y−3 is a factor of Y 2 −7Y+12