Multiply (x + 3y + 5) by (2×2 + 5y + 2)
-
A.
2x2 + 3yx2 + 10xy + 15y2 + 13y + 10x2 + 2x + 10 -
B.
2x3 + 6yx2 + 5xy + 15y2 + 31y + 5x2 + 2x + 10 -
C.
2x3 + 6xy2 + 5xy + 15y2 + 12y + 10x2 + 2x = 10 -
D.
2x2 + 6xy2 + 5xy + 15y2 + 13y + 10x2 + 2x + 10 -
E.
2x3 + 2yx2 + 10xy + 10y2 + 31y + 5x2 + 10
Correct Answer: Option B
Explanation
((x + 3y + 5)(2x^{2} + 5y + 2))
= (2x^{3} + 5xy + 2x + 6yx^{2} + 15y^{2} + 6y + 10x^{2} + 25y + 10)
= (2x^{3} + 5xy + 2x + 6yx^{2} + 15y^{2} + 31y + 10x^{2} + 10)