Use the fact that 
to evaluate the expression without using a calculator.
?
Fill in the blank(s) with the appropriate word(s).
316.2
Mathematics
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Write the equation of the axis of symmetry.y = 4x2 - 3x - 10
A. x = 4
B. x = 
C. x = 10
D. x = 
Mathematics
Find the nth term an of the geometric sequence.7, -14, 28, -56, 112, . . .
A. an = (7)(-2)n-1 B. an = a1 - 2n C. an = (7)(-2n) D. an = (7)(-2)n
Mathematics
Factor the difference of two squares.49x2 - 9
A. (7x + 3)2 B. (7x + 3)(7x - 3) C. (7x - 3)2 D. (49x + 1)(x - 9)
Mathematics
Solve the equation by making an appropriate substitution.x4 - 31x2 + 150 = 0
A. {-5, 5, -i
, i
}
B. {25, 6}
C. {-5, 5, -
, 
}
D. {5, 
}
Mathematics