(2x - 3)(4 - 3x) find the product of binomials

Me find the measure to side c and the process to solve the problem you appreciate it : )

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.

Prove that 16^4-2^13-4^5 is divisible by 11.