Answer:
2 (x^2-10)((x^2 +10)
Step-by-step explanation:
2x^4 - 200
Factor out 2
2(x^4 -100)
The inside is the difference of squares (a^2 -b^2) = (a-b)(a+b)
2 (x^2-10)((x^2 +10)
The Pythagorean identity is based from the three trigonometric identities that apply to the Pythagorean theorem. The three identities are founded on the concept that the hypotenuse is equal to the sum of the squares of the two sides of the right triangle. The identities can be determined through the substitution of sine and cosine in the right triangles measurements.
Katalin drove 300 miles on her vacation. She drove an average of 1.9 times faster on the second 150 miles of her trip than she did on the first 150 miles of her trip. Which expression represents the time she spent driving? Let x = her speed on the first half of the trip.
228.95x
