Multiply.
-$0.8 x ^ { 2 } y ^ { 2 } \left( 2.2 x ^ { 5 } y - 4.9 x ^ { 3 } y ^ { 2 } + 1.9 x y ^ { 3 } \right)$
A) $1.76 x ^ { 7 } y ^ { 3 } - 3.92 x ^ { 5 } y ^ { 4 } + 1.52 x ^ { 3 } y ^ { 5 }$
B) $1.76 x ^ { 7 } y ^ { 3 } + 3.92 x ^ { 5 } y ^ { 4 } - 1.52 x ^ { 3 } y ^ { 5 }$
C) $1.76 x ^ { 7 } y ^ { 3 } + 3.92 x ^ { 5 } y ^ { 4 } + 1.52 x ^ { 3 } y ^ { 5 }$
D) $1.76 x ^ { 7 } y ^ { 3 } - 3.92 x ^ { 5 } y ^ { 4 } - 1.52 x ^ { 3 } y ^ { 5 }$

Question

Quizplus · Accepted Answer

When multiplying the terms, coefficients are multiplied and exponents with the same base are added. For each term: $0.8 \times 2.2 = 1.76$, $0.8 \times (-4.9) = -3.92$, $0.8 \times 1.9 = 1.52$; and the exponents of $x$ and $y$ are added according to the rules of exponents.

Multiply - 0.8x2y2(2.2x5y−4.9x3y2+1.9xy3)0.8 x ^ { 2 } y ^ { 2 } \left( 2.2 x ^ { 5 } y - 4.9 x ^ { 3 } y ^ { 2 } + 1.9 x y ^ { 3 } \right)0.8x2y2(2.2x5y−4.9x3y2+1.9xy3)

Multiply
- $0.8 x ^ { 2 } y ^ { 2 } \left( 2.2 x ^ { 5 } y - 4.9 x ^ { 3 } y ^ { 2 } + 1.9 x y ^ { 3 } \right)$