Question

find the value of the polynomial 4x²-5x+7at ; (1) x=1​

Answer 1

4×1-5×1+7at

4-5+7at

-1+7at

Answer 2

$\huge\red{ꫝꫀꪶꪶꪮ}$

The value of polynomial 4x² - 5x +3 when x= -1 is 4.

The value of polynomial 4x² - 5x +3 when x= 1/2 is 3/2

f(x) = 4x²- 5x +3

f(-1) = 4(-1)² -5x +3

= 4

Again,

f(x) = 4x²- 5x +3

f(1/2) = 4(1/2)² - 5(1/2) +3

= 3/2