Expand and simplify (x-2)(2x+4)

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2x² - 8

Step-by-step explanation:

Given

(x - 2)(2x + 4)

Each term in the second factor is multiplied by each term in the first factor, that is

x(2x + 4) - 2(2x + 4) ← distribute both parenthesis

= 2x² + 4x - 4x - 8 ← collect like terms

= 2x² - 8

the answer is 39

Step-by-step explanation:

first add 6 and 7

3(13)

=39