Question

solve the following equation by Factorizatio method : y^2-4x-21=0​

Answer 1

Answer:

2 − 4 − 2 1 = 0

solve the following equation by Factorizatio method : y^2-4x-21=0​

Answer 2

Answer:

-3 or 7

Step-by-step explanation:

We have,

x²-4x-21=0

=>x²-7x+3x-21=0

=>x(x-7)+3(x-7)=0

=>(x+3)(x-7)=0

Therefore, Either x=-3 or x=7

Note:- Your given expression is y²-4x-21=0

But it should be either x²-4x-21 or y²-4y-21.

Please mark me as Brainliest