mckayla_04
olve 4x2 = 12x + 40.



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bahrom7893
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Try this one yourself, come on!

mckayla_04
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solve 4^2

bahrom7893
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first step should be moving everything over to one side and dividing everything by 4

mckayla_04
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Thats the Point, I dont know how.

bahrom7893
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Ok, i'll show u this ex. Try the next one:
4x^2 = 12x + 40
4x^2  12x  40 = 0

bahrom7893
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now divide everything by 4:
x^2  3x  10 = 0

bahrom7893
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Now use the discriminant formula:
D = (3)^2  4*(1)*(10) = 9 + 40 = 49

bahrom7893
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x1 = (b  sqrt(D))/(2a)
x2 = (b +sqrt(D))/(2a)

bahrom7893
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x1 = (3  7)/2 = 2
x2 = (3+7)/2 = 5