Evaluating expressions for a purpose
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1. Evaluate: -2 x 5 + ((-1)^3 - 2)^2 (NOTE) The negative 1 is in a parenthesis by itself.
2. Simplify
-4(-6u + y) + (4y + 6u).
4. Rewrite without an exponent
(5/7)^2
5. Write 888 in scientific notation
6. Calculate (-5 x 10^8)^2
7. Simplify (-y^2 + 6y - 9) + (-9y^2 - 4) - (6y^2 - 6y + 9).
8. Perform the following multiplications
2t^9z^9 x 2t x 4z^6
9. Multiply and Simplify
(z - 3) (z + 1)
10. Rewrite without parenthesis and simplify
(5w - 5)^2
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Solution Summary
Evaluating expressions is achieved for exponents.
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1. Evaluate: -2 x 5 + ((-1)^3 - 2)^2 (NOTE) The negative 1 is in a parenthesis by itself.
Solution
= -10 + (-1 -2)^2
= -10 + 9
= -1
2. Simplify
-4(-6u + y) + (4y + 6u).
Solution
= 24u - 4y + 4y + 6u
= 30u
4. Rewrite without an exponent
(5/7)^2 ...
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