Question

solve and answer maths​

Answer 1

Answer:

$3x^{3} - 4 {x}^{2} + 7x - 5 \\ = 3 \times {3}^{3} - 4 \times {3}^{2} + 7 \times 3 - 5 \\ = 3 \times 27 - 4 \times 9 + 21 - 5 \\ = 81 - 36 + 21 - 5 \\ =102 - 41 \\ = 61$

Answer 2

Answer:

put the value of x=3 in the above equation

3x³-4x²+7x-5