Question

step by step explanation please both questions​

Answer 1

For these type of questions, just subtract the smaller equation from the bigger one.

14. subtract the smaller equation from the larger one. We know from the question that 15x - 18y + 19z is smaller than the other equation.

So, (22x-20y-13z+26) - (15x-18y+19z) = 22x-15x + 18y-20y -19z-13z +26

= 7x -2y -32z + 26 is the answer.

15. Similar to the above question, we know from the question that 5x²y²-18xy²-10x²y is bigger.

So, (5x²y²-18xy²-10x²y ) - (-5x²+6x²y-7xy) = 5x²y²-18xy²-6x²y-10x²y+7xy+5x²

= 5x²y²-18xy² -16x²y +7xy +5x² is the answer.

Hope it helps. Thank you.