Questions
H Algebra 2 HA2 4.7/4.8 Quiz
Multiple choice
Solve. 3 ๐ฅ 4 = 3 ๐ฅ ( 56 ๐ฅ โ ๐ฅ 2 ) Select ALL numbers which are solutions to this equation.
Options
A.-10
B.-9
C.-8
D.-7
E.-6
F.-5
G.-4
H.-3
I.-2
J.-1
K.0
L.1
M.2
N.3
O.4
P.5
Q.6
R.7
S.8
T.9
U.10
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Step-by-Step Analysis
Question restatement: Solve the equation 3x^4 = 3x(56x โ x^2) and select ALL numbers that are solutions from the given options.
Option analysis:
-8: To test or to reason directly, bring all terms to one side: 3x^4 โ 3x(56x โ x^2) = 0. This simplifies to 3x^4 โ 168x^2 + 3x^3 = 0, which factors as 3x^2(x^2 + x โ 56) = 0. Further factoring the quadratic gives 3x^2(x + 8)(x โ 7) = 0. Therefore x = 0 (double root), x = โ8, or x = ......Login to view full explanationLog in for full answers
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