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2 years ago

In the following exercises, multiply the binomials. Use any method. 254. (10a − b)(3a − 4)

Mathematics

1 answer:

lys-0071 [83]2 years ago

7 0

Answer:

Hence the expression $(10a-b)(3a-4)=30a^2-3ab-40a+4b$

Step-by-step explanation:

Explanation

The given expression is (10a-b)(3 a-4).
We have to multiply the given expression.
Multiply the (10a-b) by -4, multiply the (10 a-b) by 3a then add like terms.

$\begin{matrix}{} & {} & {} & {} & 10a & - & b \\ \times & {} & {} & {} & 3a & - & 4 \\ \end{matrix}$

___________________

$\begin{matrix}{} & {} & {} & - & 40a & + & 4b \\ 30{{a}^2} & - & 3ab & {} & {} & {} & {} \\ \end{matrix}$

___________________

$\begin{matrix}30{{a}^2} & - & 3ab & - & 40a & + & 4b \\ \end{matrix}$

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