Question

Multiply.(-7a+2)(-3a+2)

Answer 1

`\left(-7a+2\right)\left(-3a+2\right)`

Step 1

remember:

`\begin{gathered} a\cdot a=a^2 \\ (a+b)\left(c+d\right)=ac+ad+bc+bd \end{gathered}`

break the parenthesis

(-7a*-3a)+(-7a*2)+(2*-3a)+(2)*(2)

make the operations

`\begin{gathered} 21a^2+(-14a)+(-6a)+4 \\ 21a^2-14a-6a+4 \\ 21a^2-20a+4 \end{gathered}`

and, that is the answer