Multiply.4z2(7z2 + 5z + 5)
A. 11z4 + 9z + 9
B. 28z4 + 20z2 + 20
C. 28z4 + 20z + 20
D. 28z4 + 20z3 + 20z2
Answer: D
Mathematics
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Solve.3 - 
> 
(x + 5) Put your answer in set-builder notation.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.32x = 
A. 
B. - 
C. 
D. 
Mathematics
Solve the system by using Gaussian elimination with backward substitution or by reducing the matrix to reduced-row echelon form. 9x - 7y = -18 5x + 5y = -10
A. (-3, 1) B. (-2, 1) C. No solution D. (-2, 0)
Mathematics
Simplify.
A. 
B. - 
C. 
D. 
Mathematics