Question

what will be the ans of this 2x^2+x-105=0?​

Answer 1

Answer:

x = -15/2 or x = 7

Step-by-step explanation:

${2x}^{2} + x - 105 = 0 \\ > > > {2x}^{2} + (15 - 14)x - 105 = 0 \\ > > > {2x}^{2} + 15x - 14x - 105 = 0 \\ > > > x(2x + 15) - 7(2x + 15) = 0 \\ > > > (2x + 15)(x - 7) = 0 \\ either(2x + 15) = 0 \: or \: (x - 7) = 0 \\ > > > x = \frac{ - 15}{2} \: or \: x = 7$

Hope It Helps!

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