Question

25x^2 - 24x + 4 tại x = 5

Answer 1

25x²-24x+4

25(5)²-24(5)+4

25×25-120+4

625-120+4

505+4

509.

Answer 2

Evaluating Expressions

Answer:

`509`

Explanation:

`25x^2 -24x +4 \text{ when } x = 5`

`25x^2 -24x +4 \\ 25(5)^2 -24(5) +4 \\ 25(25) -24(5) +4 \\ 625 -120 +4 \\ 509`