Answer:
2x^2 - 18x + 28
Step-by-step explanation:
(x - 7)(2x - 4) =
= (x - 7)(2x) - (x - 7)(4)
= 2x^2 - 14x - 4x + 28
= 2x^2 - 18x + 28
Using distributive property, the expression will be 2x^2 - 18x + 28.
Suppose a, b and c are three numbers.
Then we have:
[tex]a(b + c) = a\times b + a\times c[/tex]
(a(b+c) means a multiplied to (b+c).
The sign of multiplication is usually hidden when using symbols and both quantities which are in multiplication are written together without space)
Given expression;
(x - 7)(2x - 4)
Perform the distribution:
= (x - 7)(2x) - (x - 7)(4)
= 2x^2 - 14x - 4x + 28
= 2x^2 - 18x + 28
Hence, Using distributive property, the expression will be 2x^2 - 18x + 28.
Learn more about distribution here;
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