Question

In the following exercises, multiply the binomials. Use any method.
258. (5x − y)(x − 4)

Answer 1

Hence the expression
`$$(5x-y)(x-4)=5x^2-xy-20x+4y$$`

Explanation:

Explanation

• The given expression is (5 x-y)(x-4).
• We have to multiply the given expression.
• Multiply the (5 x-y) by -4, multiply the (5 x-y) by x then add like terms.

`$$\begin{matrix}{} & {} & {} & {} & 5x & - & y \\ * & {} & {} & {} & x & - & 4 \\ \end{matrix}$$`

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`$$\begin{matrix}{} & {} & {} & - & 20x & + & 4y \\ 5{{x}^2} & - & xy & {} & {} & {} & {} \\ \end{matrix}$$`

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`$$\begin{matrix}5{{x}^2} & - & xy & - & 20x & + & 4y \\ \end{matrix}$$`