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OpenStudy (anonymous):
solve the following system of equations algebraical and check all solutions y=x2+3x-4 and y-x=7
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OpenStudy (anonymous):
y = x + 7 x + 7 = x^2 + 3x - 4 x^2 + 2x - 11 = 0 quad formula x = -1 - 2 Sqrt[3],-1 + 2 Sqrt[3]
OpenStudy (anonymous):
Thank you soo much now all i do is subsitute those for X to check right :]
OpenStudy (anonymous):
yup
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