Quadratic in Form Polynomials Answers
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Which quadratic equation is equivalent to (x + 2)2 + 5(x + 2) – 6 = 0?
A
(u + 2)2 + 5(u + 2) – 6 = 0 where u = (x – 2)B
u2 + 4 + 5u – 6 = 0 where u = (x – 2)C
u2 + 5u – 6 = 0 where u = (x + 2)D
u2 + u – 6 = 0 where u = (x + 2)2
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What are the solutions of the equation x4 – 5x2 – 14 = 0? Use factoring to solve.
A
and
B
and
C
and
D
and
3
What are the solutions of the equation x4 – 9x2 + 8 = 0? Use u substitution to solve.
A
x = 1 and x =
B
x = ±1 and
C
x = ±i and
D
x = ±i and
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