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plzzzzzzzzzzzzz help

Plzzzzzzzzzzzzz Help class=

Sagot :

(2m-7)(2m-7)
4m^2 - 14m - 14m + 49
4m^2 - 28m + 49
KiaraL2006idn

Answer: 4m²-28m+49

Step-by-step explanation:

(2m-7)² can be written as (2m-7)(2m-7).

You would have to multiply it out like this:

2m times 2m=4m² (2x2=4 and mxm=m²)

2m times -7=-14m (2x-7=-14 then put a m on it)

-7 times 2m=-14m

-7 times -7=49

The equation would then look like this:

4m²-14m-14m+49

Then you would have to collect like terms. Like terms are terms with the same variables and powers. It will then look like this:

4m²-28m+49

Hope this helps :)

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