Hva er standardformen for y = (x + 4) (2x-2) - (5x-2) ^ 2?

Hva er standardformen for y = (x + 4) (2x-2) - (5x-2) ^ 2?
Anonim

Svar:

# y = -23x ^ 2 + 26x-12 #

Forklaring:

# Y = (x + 4) (2x-2) - (5x-2) ^ 2 #

# Y = x (2x-2) 4 (2x-2) - (5x-2) (5x-2) #

# Y = 2x ^ 2-2x + 8x-8- 5x (5x-2) -2 (5x-2) #

# Y = 2x ^ 2-2x + 8x-8- 25x ^ 2-20x + 4 #

# Y = 2x ^ 2-2x + 8x-8-25x ^ 2 + 20x-4 #

# Y = -23x ^ 2 + 26x-12 #

Håper dette hjelper!