Elementary Math homework

Homework # 4

1. Rewrite the product in exponential form 5z·5z·5z

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2. Rewrite the product in exponential form (b-c)·(b-c)·6·6

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3. Simplify the expression by combining like terms 10x – 4y -25x +6y

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4. Simplify the expression : -10(-3b3)

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5.Simplify the expression : (12x/5)·(10/3)

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6.Simplify the expression by removing symbols of grouping and combining like terms

50x – ( 30x +100 )

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7. Remove symbols of grouping and combine like terms : 2[ x + 2(y – x)]

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8. Add : 4b/9 + 2b/9

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9. Find Perimeter of the rectangle.

X+6

2X

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10. Evaluate the algebraic expression at the given values of the variables.

x 2- 2y + z when x = 1 , y = 2 and z = 0

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