We can start with the first two sets
(x+3i)(x-3i) = x²-9i² then simplify it to x²+9
multiply the next two
(x+1)(x-1) = x²-1
then multiply those two together
(x²+9)(x²-1) = x∧4-x²+9x²-9
combine like terms x∧4+8²-9
that is your answer
Answer:
lines ab and ef
Step-by-step explanation:
they are the same length, this what congruent means
x²+3x = 9x - 8
Subtract 9x on both sides
x² - 6x = -8
Add 8 on both sides
x² - 6x + 8 = 0
Now you need to find the factors of 8(numbers that multiply to equal 8) that add or subtract to -6.
Factors of 8: 1, 2, 4, 8
2 and 4 add up to 6, if they are both negative they equal -6.
(x - 2)(x - 4) = 0
x - 2 = 0
x = 2
x - 4 = 0
x = 4
x = 2, x = 4
Answer:
100 toys in 8 hours
Step-by-step explanation:
10x5=50 (4 hours)
THEN
50x2=100 (8 hours)
Answer:
The bobcat bouncers jumping team can jump 90 times in 45 seconds.
Step-by-step explanation:
