Question
Multiply polynomial $ \, \color{blue}{ 3-4 } \, $ by $ \, \color{orangered}{ 7+y }$.
Answer
$$ \left( \color{blue}{3-4} \right) \cdot \left( \color{orangered}{7+y} \right) = -y-7 $$
Explanation
Step 1: First we have to write polynomials in descending order.
$$ \begin{aligned} P(x) &= -1 \\ Q(x) &= y+7 \\ \end{aligned} $$We can use distribution property to multiply the polynomial by the monomial.
$$ \begin{aligned} \color{blue}{-1} \cdot \left( y+7 \right) &= \color{blue}{-1} \cdot y + \color{blue}{-1} \cdot 7 = \\ &= -y-7 \end{aligned} $$This page was created using
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