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OpenStudy (anonymous):
what are solutions of the quadratic equation x^2+11x=-28? A.-4,-7 b.-4,7 c.4,7 c.4,-7
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OpenStudy (campbell_st):
rewrite the equation as \[x^2 + 11x + 28 = 0\] you can factor the equation by finding 2 numbers that multiply to 28 and add to 11. then solve the binomial factors...
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