Question

Find the value of the polynomial 5x-4x^2+3 at x=0 and x=-1

answer me fast plz

Answer 1

Given :

• polynomial 5x-4x²+3

To find :

• value of the given polynomial at x=0 and x=-1

Solution :

To find the value of given polynomial at x=0 , put x = 0 in 5x-4x²+3

$\implies \sf5x-4 {x}^{2} +3$

$\implies \sf \: 5(0)-4( {0} )+ 3$

$\implies0-0 + 3$

$\implies \sf3$

To find the value of given polynomial at x= -1 , put x = -1 in 5x-4x²+3

$\implies \sf5x-4 {x}^{2} +3$

$\implies \sf5( - 1)-4 ({ - 1)}^{2} +3$

$\implies \sf - 5-4 +3$

$\implies \sf - 9 + 3$

$\implies \sf - 6$

Answer : 3 and -6

Answer 2

$\bf \underline \red{Given :-}$

• 5x -4x² +3

$\bf \underline \red{To \: \: Find :-}$

• Value of the given polynomial at x = 0 and x = ,-1

$\bf \underline \red{Explanation:-}$

Value of given polynomial at x = 0.

$\sf \implies \: 5x - {4x}^{2} + 3$

$\sf \implies \:5(0) - 4( {0)}^{2} + 3$

$\sf \implies \:0 - 0 + 3$

$\sf \implies \:3$

•°• Value of the given polynomial at x= 0 is 3

Value of given polynomial at x = -1

$\sf \implies \:5x - {4x}^{2} + 3$

$\sf \implies \:5( - 1) - 4( { - 1)}^{2} + 3$

$\sf \implies \: - 5 - 4(1) + 3$

$\sf \implies \: - 5 - 4 + 3$

$\sf \implies \: - 9 + 3$

$\sf \implies \: - 6$

•°• Value of the given polynomial at x = -1 is -6