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OpenStudy (anonymous):
Solve. 2x^2 + 16x + 50 = 0 a. -4 +- i b.-4 +- 3i c.-2+-4i d. -3+-4i
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hero (hero):
Complete the square
OpenStudy (anonymous):
idkk how to do thatt........
hero (hero):
2x^2+16x+50 = 0 2(x^2+8x+25) = 0 x^2+8x+25 = 0 x^2+8x = -25 x^2+8x+16 = -25 + 16 (x+4)^2 = -9 x + 4 = sqrt(-9) x = sqrt(-9) -4 x = plus or minus 3i -4 Option b
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