marlesly87
07.12.2020 •
Mathematics
HW 2: Chapter 2: Out of 100
Due: Wed. 2/10/2020 , 11:59 PM
I- Remove the brackets and simplify:
a) 3x(x – 2)(x +5)
b) (x – 3)^2 – (x + 2)^2
c) (x -4)(4x +3)(2x +3)
II- Solve each of the following questions:
a) – 2x +1/3=x/5+ 1
b) 4x (x – 3) = (2x +1)( 2x +6)
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Ответ:
7 - (-11) would become 7 + 11, because the minus symbol would turn the negative into a positive. The answer is 7 + 11 = 18.