Perform the indicated operations and simplify.(4×9 – 2×8 – 4×7 – 2) +

Factor the polynomial completely.x4 + 7×3 – 18×2

Multiply.(5x – 7)2

Factor completely.16×2 + 81

Solve.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 48 square centimeters. Find the side of the square.

Factor.343 – x3

Factor completely.x2 – 6x + 9 – y2

Factor the polynomial completely.x5 – 7×4 – 18×3

Factor the trinomial.x2 + x – 42

Factor out the greatest common factor.12(y + 13) – x(y + 13)