Bro be careful with the link
Answer:
18x^4 − 12x^3 + 57x^2 − 28x + 35
Minimum: 1
Q1: 2.5
Q2: 5
Q3: 7
Maximum: 13
1.4n represents the price and number of packages of pencils. 1.2m represents the number of paper pads and the price
First one simplifies to 2x + 6 = 2x + 7 which can't be true so this one has No Solution.
Same applies to the second equation ( 5x + 15 = 5x - 15) No solution
also the last one has no solution because it simplifies to 4x + 20 = 4x + 19
