Symplifying Algebraic Expressions - Problems with Solutions

Problem 1
Evaluate the expression: 40 − 9x2 for x=-3
Problem 2
Evaluate the expression: x2 − 3xm − m + 4, for x = 2 and m = 3
Problem 3
Evaluate the expression: t4 − t3 − 4t + 18 = ? for t = 2
Problem 4
Evaluate: 9(x − 2y) for x=3 and y=-2
Problem 5
Simplify: x(x + 5)
Problem 6
Simplify the expression: (x - 7)x
Problem 7
Divide the monomials [tex]\frac{8x^2y}{4xy} = ?[/tex]
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