Question

1) Simplify the following
-(49-a) - 5a²
6x² - (2x²-y²) -2y²
2) how much does 5x²-9x+8 exceed -x³-4x²+9x-11?
3) if 2x-2=4 and 0.05y=0.15 find the value of y²-x²
4) how much is (-2x+3y-6z) less than (x-2y-5z)?
5) how much is x³-3x²+2x-14 greater than 2x³-4x²+6x-3 ?
6) the sum of two expressions is x²-y²+3y-5.if one of them is 2y²+2x-y-10​

Answer 1

Step-by-step explanation:

Instead of using non-renewable natural resources, use of renewable natural resources should be preferred.

Waste water generated by industries should be recycled.