veaseyjermarius1234
26.01.2021 •
Mathematics
Which expression is equivalent to
-4 (2m - 3 ) - (m+2)
-9m+10
9m+10
7m+10
-7m+10
Solved
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Ответ:
4 - 2m + 3
Step-by-step explanation:
when you distribute the negative sign you will get this
Ответ:
Hint: "4x 2 - 25 = 0" is nearly meaningless. You want 4x^2 - 25 = 0.
Note that both 4x^2 and 25 are perfect squares, so this is the difference of two squares, and is equal to (2x-5)(2x+5)= 0.