Question

urgentee
com o cálculo pfvrr

Answer 1

a) 2x^2+3x-1 b)2x^2+3x-1
-4^2-6-1 8^2+12-1
16-6-1 64+12-1
9 75

Answer 2

2x² + 3x -1

a) x = - 2   ------- 2 . ( -2)² + 3 (-2) -1 ------ 2 . (4) - 6 -1 ------ 8 - 7 = 1


b) x = 4  ------- 2 . 4² + 3 . 4 - 1 ------ 2 . 16 + 12 - 1 ------- 32 + 11 ---- 43