vbh
(x + 10)(x + 3)
45 = 30 + m Subtract 30 from both sides: 15 = m
11a+9 = 4a+30 11a-4a = 30-9 7a = 21 Solution: a = 3
v is -15... -15*2 = -30... -30+11= -19.
(3,3)
It does not help you.
vbh
13(x + 50) = 30 13x + 650 = 30 subtract 650 to both sides; 13x = -620 divide by 13 to both sides; x = -620/13
(x + 10)(x + 3)
45 = 30 + m Subtract 30 from both sides: 15 = m
X^2 - 13X + 30 = 0 (X-3)(X-10) easy inspection problem
11a+9 = 4a+30 11a-4a = 30-9 7a = 21 Solution: a = 3
v is -15... -15*2 = -30... -30+11= -19.
(x - 10)(x - 3)
x = 6 and y = -2
x^2 + 13x + 30 = 0 x^2 + 10x + 3x + 30 = 0 x(x + 10) + 3(x + 10) = 0 (x + 3)(x + 10) = 0 x = -3 or x = -10