Question

please help me with this question with Explaining
Q12 and 13 both​

Answer 1

Answer:

12. ( y + 2 ) ( y - 3 )

13. -4xy + 12xz + 4x^2 + y^2 - 6yz + 9z^2

Step-by-step explanation:

12. Think: What can multiply to equal -6 and sum to equal -1. That gives you the numbers 2 and -3.

13. This equation is squared, so to expand it you have to multiple it by itself. Like: (2x-y+3z) * (2x-y+3z). From here you use the FOIL method and should get the provided answer.

I hope this gives you a better idea on how to solve this. Good luck!

Answer 2

Answer:

Q.12

Step-by-step explanation:

we can write the above equation in this way also:

y^2 + (-3*y) + 2*y -6 = 0

then we can take y as common from the first 2 terms and 2 as common from the other 2 terms.

y(y-3) + 2*(y-3) = 0

again we'll take common from the two terms, this time (y-3) is common.

(y+2)*(y-3) = 0