Question

Find the value of 5x2 – 3x + 7 when x = 3 ​

Answer 1

Answer:

5x²-3x+7

5(3)²-3(3)+7

5(9)-9+7

45-2

43

Answer 2

Answer:

$5 {x}^{2} - 3x + 7 \\ x = 3 \\ 5( {3}^{2} ) - 3(3) + 7$

$= 43$