3) 70
2x-3=42
45/2
D) 343
B) 1
C
4) (5,-3) and 4
3) (2x+3)(x+4)
D
A) 2
A
b) 67 degrees
c) 30
B
A) -4i
b) 160
2) y=1/4x-5/4
4) 400/sqrt91
42
x^3/(x^3-a^2y)
(6, -sqrt7)
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