Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Match each system of equations to its graph.
y = 2x+1
y=x+2
y=3x
y=x+3
y=2x-2
y=x-2
y=2x+3)
y=x+5
y = 4x+2
y=3x+2
15
5 4 3 2 1
1
2
3

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb