Simplify the algebraic expression.18x2 - 18x2
A. 0
B. -36x2
C. x2
D. cannot be simplified
Answer: A
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Factor out the greatest common factor. Simplify the factors, if possible.32x8y9 - 32x3y7 - 24x6y4
A. 8x3(4x5y9 - 4y7 - 3x3y4) B. 8(4x8y9 - 4x3y7 - 3x6y4) C. 8x3y4(4x5y5 - 4y3 - 3x3) D. x3y4(32x5y5 - 32y3 - 24x3)
Find parametric equations for the line described below.The line through the point P(7, -6, -7) and parallel to the line x = 4t - 7, 
A. x = 5t + 7, y = -4t, z = -7 B. x = 4t + 7, y = 5t - 6, z = 4t - 7 C. x = 7, y = 4t - 6, z = -5t - 7 D. x = 4t - 7, y =5t + 6, z = 4t + 7
Estimate by rounding.
A. 305 B. 310 C. 240 D. 265
Provide an appropriate response.Find the saddle values, if it exists, for the matrix game (include row and column location). 
A. 4; row 1 column 1 B. 4; row 2 column 1 C. 6; row 1 column 2 D. 3; row 2 column 1