Question

If alt="(5x-2)^2= ax^2 - bx +c" align="absmiddle" class="latex-formula">, what is the value of $a+c^2$?

Answer 1

Answer:

41

Step-by-step explanation:

(5x - 2)² = ax² - bx + c

25x² - 20x + 4 = ax² - bx + c

a = 25

c = 4

a + c²

25 + 4²

25 + 16

41

Answer 2

Answer:

41

Step-by-step explanation:

(5x-2) ^2 = ax^2 -bx +c

Foil

(5x-2) (5x-2)

25x^2 -10x -10x +4

25x^2 -20x+4

a=25 b=20 c = 4

a+c^2 =25 +4^2 =25+16 = 41