Question

solve : y4+3y2-28
immediately solve it plz

Answer 1

Let see your answer !!!!!

$y ^{4} + 3y ^{2} - 28 \\ \\ = y ^{4} + 7y ^{2} - 4y ^{2} - 28 \\ \\ = y ^{2} (y ^{2} + 7) - 4(y ^{2} + 7) \\ \\ = (y ^{2} + 7)(y ^{2} - 4) \\ \\ = (y ^{2} + 7)(y ^{2} - 2 ^{2} ) \\ \\ =(y ^{2} + 7)(y + 2)(y - 2)$



Thanks :)))))

Answer 2

Hy friend u r answer is in this pic. So you click on the pic and find u r answer.

Hope it may be helpful to you.✌️✌️✌️✌️