By factoring, x equals both -5 and 7.
0 = x + 2 + x^2
x^2 + x + 2 = 0
a = 1, b = 1, c = 2
discriminant = b^2 - 4ac = 1^2 - (4 x 1 x 2) = 1 - 8 = -7
Answer: $13.5
Step-by-step explanation:
90 x 5% = 4.5 x 3 = 13.5
Answer:Ages 11 and 15.
Step-by-step explanation:
Although, I cannot answer this properly due to grammatical errors, I think its safe to say you were referring to the younger brother, whom of which would be 11.
