A²-28=3a this has to be answed by factoring but idk how... help >_

(a + 4)(a - 7)

Step-by-step explanation:

a^2 - 3a - 28

Factors of 28: 1, 2, 4, 7, 14, 28

4 - 7 = -3

(a + 4)(a - 7)

now to check:

(a • a) + (a • -7) + (4 • a) + (4 • -7)

(a^2) + (-7a) + (4a) + (-28)

a^2 - 7a + 4a - 28

a^2 - 3a - 28

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

its a trick question

step-by-step explanation:

dogs love water, just turn on the hose and it will run in circles chasing the water all day : )