A.
1. 5(2)+3 = 13
2. 3(3)(-1) = -9
3. 6(-1)-8(-2) = 10
4. (4)²+2(4)(3)+(3)² = 49
5. 2(3)+5/3(3)-(-8) = 11/17 or 0.64
B.
1. 11a+8b
2. 16m-2n
3. 5x²+x
4. 10+18y³
5. x^5-6x³-10x²+8x+2
C.
1. 2a+16
2. 0 or zero
3. -7x²+7x+7
4. -2x³-2x-16
5. 0.5y³+6.5y²+10
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Answers & Comments
A.
1. 5(2)+3 = 13
2. 3(3)(-1) = -9
3. 6(-1)-8(-2) = 10
4. (4)²+2(4)(3)+(3)² = 49
5. 2(3)+5/3(3)-(-8) = 11/17 or 0.64
B.
1. 11a+8b
2. 16m-2n
3. 5x²+x
4. 10+18y³
5. x^5-6x³-10x²+8x+2
C.
1. 2a+16
2. 0 or zero
3. -7x²+7x+7
4. -2x³-2x-16
5. 0.5y³+6.5y²+10