Answer:
1) 91
Step-by-step explanation:
28 + 63 = 91
6.3 x 10'-8
63 - 8
55
55 is the answer
Y = x^2 + 10x - 171
y = (x - 9)(x + 19)
x - 9= 0 x + 19 = 0
x = 9 x = -19
Answer B covers all requirements... the factored form is
y= (x + 19)(x - 9)
and the zeros are -19 and 9
