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Earn +20 ptsQ: Use the quadratic formula to solve 2y2 6y 8 equals 0?
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How do you factorise the quadratic equation 2y squared - 2y -24?
2y2 - 2y - 24 has the factors (2y + 6) and (y - 4) There is a formula, but I always use trial and error. The factors of the non-x element need to be such that they can be added to give the middle element. So when you get 24, then you need to be looking at 2,12 - 3,8 - 4,6 When both the second and third element are minus values then there is a plus and a minus in the factors.
Combine like terms?
mathematics: to combine terms that are alike
Factor 5x3 plus 40y6?
5(x + 2y2)(x2 - 2xy2 + 4y4)
How do you factor 12y to the third power minus 30y squared plus 12y?
12y3 - 30y2 + 12yFactor out a y:y(12y2 - 30y + 12)Factor out a 6:6y(2y2 -5y + 2)Factor 2y2 - 5y + 26y(2y - 1)(y - 2)
What is 2 times y times y divided by 4?
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