Asked by may
solve the equation giving your answer in correct to 2 decimal places 5x square+4x+1=3(1-3x)
Answers
Answered by
drwls
Multiply out the term on the right, combine like terms, and use the quadratic formula (unless you can factor it).
5x^2 +4x +1 = -9x +3
5x^2 -13x -2 = 0
Now solve.
x = (1/10)[13 +/-sqrt(209)]
5x^2 +4x +1 = -9x +3
5x^2 -13x -2 = 0
Now solve.
x = (1/10)[13 +/-sqrt(209)]
Answered by
Exercise 1b
(a) ( x+1)2 =9
Answered by
chrislie
So are you using the quadratic formula?
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