Question

Find the standard form polynomial that represents this product. (6 - y - 4y^2)(-5 + 7y^2)​

Answer 1

Answer:

• -28y^4 - 7y^3 + 62y^2 + 5y - 30

Step-by-step explanation:

Opening the parenthesis and simplifying by combining like terms:

• (6 - y - 4y^2)(-5 + 7y^2)​  =
• 6(-5) +6(7y^2) - y(-5) -y(7y^2) -4y^2(-5) -4y^2(7y^2) =
• -30 + 42y^2  + 5y - 7y^3 +20y^2 -28y^4 =
• -28y^4 - 7y^3 + 62y^2 + 5y - 30