Which expression is a sum of cubes?

a) -27a^ b^6 + 8a^9 b^12
b) -9a^3 b^6 + a^9 b^10
c) 9a^3 b^6 + 8a^9 b^12
d) 27a^3 b^6 + 8a^9 b^12

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20