Simplify the expression. Use the distributive property to remove any parentheses.-2(9x + 5)
A. -28x
B. -18x + 5
C. 7x + 3
D. -18x - 10
Answer: D
Mathematics
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Use substitution to factor the trinomial.7y10 - 41y5 - 56
A. (7y5 + 8)(y5 - 7) B. y8(7y + 8)(y - 7) C. (7y5 + 7y3 + 8)(y5 - 8y3 - 7) D. (7y5 - 8)(y5 + 7)
Mathematics
Solve the equation by completing the square.x2 - 
x = - 
A. 
, 
B. 
, 
C. 
i, 0
D. 0, - 
i
Mathematics
Complete the identity.cos (? + ?) + cos (? - ?) = ?
A. sin ? cos ? B. 2cos ? cos ? C. 2sin ? cos ? D. cos ? cos ?
Mathematics
Solve the equation.
= 3
A. 5 B. 24 C. 10 D. 11
Mathematics