Use the tabular method to multiply and combine like terms. (a)- (x^2 − 4x +4)(x+3) (b) (11 − 15x − 7x^2)(25 − 16x^2) (c) (3m^3 +m^2 − 2m − 5)(m^2 − 5m − 6) (d) (x^2 − 3x +9)(x^2 +3x +9)

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?