Algebra problems to solve. Homework 3
4. Simplify the expression.
(x − 3)(2x − 4) − (x + 2)(x − 6)
7. Factor the expression by using areas.
x2 + x − 30
9
Suppose that a spreadsheet contains the following values.
Determine the value of cell E1 if it contains the following formulas.
(a) +A1 + B1
E1 =
(b) +2*A1 + 5*B1
E1 =
(c) +C1*(A1 + 4*B1)
E1 =
(d) +A1 + ⋯ + D1 or @sum(A1 . . D1)
E1 =
10.
Solve the equations.
(a)
2D + 4 = 14
D =
(b)
20E − 5 = 0
E =
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