If that's 3r + 12, that factors to 3(r + 4)
(3r - 8)(3r - 8)
(3r - 2)(3r - 2) or (3r - 2) squared.
3r-r equals 12 = -9
(3r + 2)(r - 5)
-2r(3r - 11)(3r + 11)
3r(16s + 27)
You do it by using your brain!!
-5 = 7 + 3r | subtract 7 -12 = 3r | divide by 3 -4 = r
(3r + 18)/12 = (4r - 48)/4Multiply both sides by 12: (3r + 18) = 3*(4r - 48)or: 3r + 18 = 12r - 144Subtract 3r from both sides: 18 = 9r - 144Add 144 to both sides: 162 = 9rDivide both sides by 9: 18 = rAnswer: r = 18
7 + r(3 - t)
(6r - 7v)(3r - 2v)
factor out the common monomial, 5. 5(r^3-1) Factor as a difference of cubes. 5(r-1)(r^2+r+1)