Answer:
Step-by-step explanation:
-32 = 2(x² + 10x)
Complete the square
coefficient of the x term: 10
divide coefficient in half: 5
square it: 5²
use 5² to complete the square and keep the equation balanced:
-32+2·5² = 2(x² + 10x + 5²)
18 =2(x+5)²
9 = (x+5)²
x+5 = ±√9 = ±3
x = ±3 - 5 = -2, -8
13. 4/5
14.11/25
15.-1 7/20
16. 4/5
17. -1 5/10
18.4 9/20
Answer:
negative
Step-by-step explanation:
♪＼(*＾▽＾*)／＼(*＾▽＾*)／
Y'=4x^3+4
(f(x+dx)-f(x))/dx
f(-2+.01)-f(-2)/.01
((15.6824+f(x))/.01
23.6824/.01=2368.2392
Answer:
9 plus 11 plus 12 =
Step-by-step explanation:
x is 22
