Asked by Justin
Can someone please help me with these equations.
2x(x+2)(x^2 - 2x + 4) = 0
and
Simplify (be sure to rationalize all denominators)
3/[SQRT(5) - 2]
2x(x+2)(x^2 - 2x + 4) = 0
and
Simplify (be sure to rationalize all denominators)
3/[SQRT(5) - 2]
Answers
Answered by
Ms. Sue
I hope you take more care with your math than you do with your spelling.
I can only guess that you mean ALGEBRA!
I can only guess that you mean ALGEBRA!
Answered by
Justin
yes sorry
Answered by
Reiny
once an equation is factored and equal to zero, it is very easy to solve.
simply set each factor equal to zero and solve
the last bracket needs the quadratic formula to solve and you will get two imaginary solutions.
Let me know how you made out.
for the second, multiply top and bottom by the conjugate which is (√5 - 2)
surely you were shown how to do that, right?
simply set each factor equal to zero and solve
the last bracket needs the quadratic formula to solve and you will get two imaginary solutions.
Let me know how you made out.
for the second, multiply top and bottom by the conjugate which is (√5 - 2)
surely you were shown how to do that, right?
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