Question

Find the delivertive of
y = x²+x-1​

Answer 1

2x + 1

Explanation:

`y = {x}^(2) + x - 1 \\ \\ differentiating \: w.r.t.x \: on \: both \\ sides \\ \\ (dy)/(dx) = (d)/(dx) ({x}^(2) + x - 1) \\ \\(dy)/(dx) = 2x + 1 - 0\\ \\ (dy)/(dx) = 2x + 1 \\ \\`