Answer:
7x(3-5a)
Step-by-step explanation:
21-35a =
to find a minimum common multiply you have to rationalize the number with the same numer, and this number must be a whole, this will help you to write the expression easier, if you notice that 21 and 35 are familiar of 7, then you can find a common factor, to multiply your expression
The answer is C because when you rotate 90 degrees clockwise (x,y) becomes (y,-x)
Answer:
Step-by-step explanation:
(x+y) (x+y)
=x^2+xy+yx+y^2
=x^2+2xy+y^2
Hope it helps
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D since (-5 x -5) = 25 and (7 x -8) = -56. Add 25 and -56 and your answer is D. -31
The answer is 81 because 27 x 3
