Answer:
The simplified expression is:
= 4(x-5)(x-2)
Step-by-step explanation:
Given that:
=4(x-5)² + 12(x-5)
By simplifying we get
= 4(x^2 -10x + 25) + 12x - 60
= 4x^2 - 40x + 100 + 12x - 60
Adding like terms:
= 4x^2 -28x + 40
=4(x^2-7x+10)
=4(x^2-2x-5x+10)
=4(x(x-2)-5(x-2))
By taking common we get:
= 4(x-5)(x-2)
This is the simplified expression.
I hope it will help you!
Answer:
∑ₙ₌₁⁸ (3n − 9)
Step-by-step explanation:
This is an arithmetic series where the first term is -6 and the common difference is 3. The nth term can be written as:
aₙ = a₁ + d (n − 1)
aₙ = -6 + 3 (n − 1)
There are 8 terms in this series, so the sum is:
∑ₙ₌₁⁸ [-6 + 3 (n − 1)]
Simplified:
∑ₙ₌₁⁸ (3n − 9)
Step-by-step explanation:
one hour=60min
2/3 of an hour
=2/3x60=40min
1000 metres in 40 minutes
Answer:
sooooo
Step-by-step explanation:
soooo
Answer:
positive to zero because its above the zero
Step-by-step explanation: