Question

Find the value p(x)=(x+1)(x-2)when,x=-1,2​

Answer 1

Answer:

By the formula to find a quadratic polynomial ✔✔✔✔

$x {}^{2} - ( \alpha + \beta )x + \alpha \times \beta$

where alpha = -1

and beeta = 2

x² - (-1+2)x + (-1 × 2)

x² - x + 2