Question

y^2+2y+3 multiplied by y^2+2y-3

Answer 1

Answer:

y⁴ + 4y² + 4y³ - 9

Step-by-step explanation:

ASSUME y² + 2y as x

So (x + 3) (x - 3)

AS PER THIS THE ANSWER WILL BE

= x² - (3)²

= x² - 9

Replace x as y² + 2y

= (y² + 2y)² - 9

= (y²) ² + (2y)² + 2.y².2y - 9

= y⁴ + 4y² + 4y³ - 9