Evaluate each expression for given values of variables

Algebra
Tutor: None Selected Time limit: 1 Day

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Aug 18th, 2014

Q4

22 + (3^2-4^2)

= 22 +(9-16)

=22-7

=15

Q5.

5(-10-(-2+7)^2)

=5(-10-(5)^2)

=5(-10-25)

=5(-35)

= - 175

Q6.

5x+2y^2-y^3       given x = 2 and y = 3

=5(2)+ 2(3)^2-3^3

= 10 +18-27

= 1

Q7

(5m)^2-(2n-3m)^3      given m= - 3 and n = 5

= (-3)^2 -(2*5- 3*-3)^3

= 9- (19)^3

= -6850


Aug 18th, 2014

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