Answer:
Step-by-step explanation:
4x + 7 + 2x + 5 = 180
6x + 12 = 180
6x = 168
x = 28
4(28) + 7= 112 + 7= 119
2(28) + 5 = 56 + 5= 61
x^2 + 4x +3
Answer: 15+4x
x^2 + 5x + 6
Answer: 18+5x
(x-2)(x+3)
Answer: x²+x-6
(2x-3)(x-4)
Answer: 2x²-11x+12
0.33,29%,1/4