1/3 of 21 is 21/3
If you cancel down 21/3 you would get 7
you can check your by multiplying 7 by 3 which is 21
3(x-4)^4/3+16 = 64
3(x-4)^4/3 = 48
(x-4)^4/3 = 16
(x-4)^4 = 4096
(x-4)^2 = 64
x^2-8x+16 = 64
x^2-8x-48 = 0
(x+4)(x-12) = 0
x = -4 or x = 12
Answer:
Step-by-step explanation:
y = -4x^2 + 4x + 6
Factor out the leading coefficient:
y = -4(x^2 - x) + 6
Complete the square:
y = -4(x^2 - x + (½)^2) + 4(½)^2 + 6
= -4(x-½)^2 + 7
Answer:
500,000
Step-by-step explanation: