Question

what is the value of x=1 fir the polynomial-3x+5xsquare+7​

Answer 1

Step-by-step explanation:

$given \: \: x = 1 \\ - 3x + 5x {}^{2} + 7 \\ - 3(1) + 5(1) {}^{2} + 7 \\ - 3 + 5 + 7 \\ - 3 + 12 \\ 9$

I hope it helps you

Answer 2

Answer:

9

Step-by-step explanation:

-3x+5x²+7

when x=1

-3(1)+5(1)²+7

-3+5+7

=9