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OpenStudy (cookiemonster2412):
Which of the following equations has both 1 and -3 as solutions? A. x^2-2x-3=0 B. x^2+2x-3=0 C. x^2-4x+3=0 D. x^2+4x+3=0
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OpenStudy (stefrheart):
Well you need to substitute x with both the 1 and -3 on all the equations
OpenStudy (cookiemonster2412):
ok thx
OpenStudy (stefrheart):
welcome :)
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