X² + 11x + 28 + x² + 13x + 40
combine like terms
x² + x² = 2x²
11x + 13x = 24x
28 + 40 = 68
2x² + 24x + 68 is your answer
if you want it simplified:
2(x² + 12x + 34)
hope this helps
Answer:
2 < AB < 18
Step-by-step explanation:
Answer:
75.398
Step-by-step explanation:
Answer:
6.4 cm
Step-by-step explanation:
Area of triangle = 17.28 cm²
