Question

in p(x) = 5 -4x + 2x² find p(3)​

Answer 1

$\sf \: p(x) = 5 -4x + 2x²$

$\sf \longrightarrow \: p(3) = 5 - 4 \times 3 + 2 {(3)}^{2}$

$\sf \longrightarrow \: p(3) = 5 - 12 + 2 \times 9$

$\sf \longrightarrow \: p(3) = 5 - 12 + 18$

$\sf \longrightarrow \: p(3) = - 7 + 18$

$\sf \longrightarrow \fbox{ p(3) = 11}$

hope it's helpful

Answer 2

1. Step-by-step explanation:
2. \sf \: p(x) = 5 -4x + 2x²p(x)=5−4x+2x²
4. \sf \longrightarrow \: p(3) = 5 - 4 \times 3 + 2 {(3)}^{2}⟶p(3)=5−4×3+2(3)
5. 2
8. \sf \longrightarrow \: p(3) = 5 - 12 + 2 \times 9⟶p(3)=5−12+2×9
10. \sf \longrightarrow \: p(3) = 5 - 12 + 18⟶p(3)=5−12+18
12. \sf \longrightarrow \: p(3) = - 7 + 18⟶p(3)=−7+18
14. \sf \longrightarrow \fbox{ p(3) = 11}⟶
15. p(3) = 11
19. hope it's helpful