(7x^3 – 4x^2) + (2x^3 – 4x^2)
Add 2x^3 to 7x^3
(9x^3 - 4x^2) + (-4x^2)
Add -4x^2 to -4x^2. This would be the same as subtracting 4x^2 from -4x^2
Final Answer: 9x^3 - 8x^2
*The answer cannot be broken down anymore. It's in it's simplest form.
Z=-4. z+6/3=2(z/4); cancel out the 2 on the right side[2/1*z/4---2z/4---z/2]. z+6/3=z/2; cancel out the denominator of 2 on the right side[z/2*2=z \\\ 2(z+6/3)=2z+12/3=2z+4]~~I know its alot, huh? Sry...~~ z=2z+4; subtract both sides by 2z[-z=4; divide by -1; z=-4] I hope that helped.
Im thinking the Earth’s energy from the Sun arrives in the form of visible and invisible light
One litre because 1 litre=1000ml
so i litre is better