1.

What is width in (5x²+7x-6)

Answer»

ANSWER:

5x {}^{2}  + 7x - 6 = 0 \\ 5x {}^{2}  + 3x - 10x - 6 = 0 \\ x(5 x+ 3) - 2(5x + 3) = 0 \\ (5x + 3)(x - 2) = 0 \\ 5x + 3 = 0 \\ 5x =  - 3 \\ x =   \frac{ - 3}{5 }  \: ans  \\ x - 2 = 0 \\ x = 2 \: ans

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