Evaluate each expression for x = 5 and w = - 3.
7. 7x − 7w
8. (wx)^2
9. 5w + 2x
10. w
2 − 6
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Answer:
7...7x-7w
=7×5-7×(-3)
=35-(-21)
=35+21
=56
8.......
(wx)(wx)
=(-3×5)(-3×5)
=(-15)(-15)
225
9....
5w+2x
=5(-3)+2(5)
=-15+10
=-5
10......
w=-3
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