Question

polynomial solve 2x2+11x-21​

Answer 1

is this the required answer......

Answer 2

Hello Friend.

Here is your answer below,,

$2x {}^{2} + 11x - 21 = 0 \\ = > 2x {}^{2} + 14x - 3x - 21 = 0 \\ = > 2x(x + 7) - 3(x + 7) = 0 \\ = > (2x - 3)(x + 7) = 0 \\ = > 2x - 3 = 0 \\ = > 2x = 3 \\ = > x = \frac{3 }{2} \\ or \\ = > x + 7 = 0 \\ = > x = - 7$

I hope that helps you