Question

- Find the value of polynomial
5x² - 4x+3 at x=-1​

Answer 1

Answer:

$\bold\:\underline{\boxed{12}}$

step by step explanation

5x² - 4x+3 at x=-1

→ 5(-1)² -4(-1) + 3

= 5 + 4 + 3

= 12

$\bold\:\underline{\boxed{.......hope\:this\:will\:help\:you........}}$

Answer 2

Answer:

Given:-

• x = -1

To Find:-

• Value of the polynomial, i.e. $\tt{5 {x}^{2} - 4x + 3}$

____________...

$\LARGE\tt{5 {x}^{2} - 4x + 3}$

(Expression given in the question)

$\tt{= 5 {( - 1)}^{2} - 4( - 1) + 3}$

(Values are put, i.e. -1 in place of x)

$\tt{=5 (1) - 4 \times ( - 1) + 3}$

(Changes can be seen in (-1)². It is changed into 1)

$\tt{= 5 + 4 + 3}$

(After putting the values, we have now multiplied them)

$\LARGE\tt\blue{= 12}$

(Answer is found !)

___________...

REQUIRED ANSWER:-

$\tt{\therefore Value \: of \: (5 {x}^{2} - 4x + 3) \: is }$ $\tt{ (12) \ if \: (x) \: is \:e qual \: to \: ( - 1).}$