Answer: 4
Step-by-step explanation: 7+-3 = 4
14=2c-6+3c14, we can re-write it as
14=2c-6+42c
14+6=44c
c=20/44 in fraction form OR 0.45 in decimal form.
(5x²+4x-80)(x²-5x-24)=5x²(x²-5x-24)+4x(x²-5x-24)-80(x²-5x-24)
{distributive property of multiplication}
=5x^4-25x³-120x²+4x³-20x²-96x-80x²+400x+1920
=5x^4-21x³-220x²+304x+1920
This is the answer.
