Simplify.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Translate the phrase to an algebraic expression. Use x to represent "a number."The sum of -4 and a number
A. -4 + x B. -4x C. -4 - x D. 4 + x
Mathematics
Find the x-intercept(s) of the graph of the equation. Graph the equation.y = x2 + 4x - 7
A. x-intercepts: -4 and 3
B. x-intercepts: none
C. x-intercepts: -2 ± 
D. x-intercept: 4
Mathematics
Divide, if possible. If a quotient is undefined, state so.
A. -8 B. -9 C. -10 D. 9
Mathematics
Factor the polynomial completely.w2 + 6w + 9 - z2
A. (w + 3 + z)(w + 3 - z) B. (-w + 9 + z)(w + 9 - z) C. (w - 3 + z)(w - 3 - z) D. (w - 3 + z)(w + 3 - z)
Mathematics