Problem :
Simplify -4x(11 + 6x - 12x2)
-44x - 24x2 +48x3
Problem :
Simplify 7x2y(- 6x2 +2y2 + xy - 9x + 2)
-42x4y + 14x2y3 +7x3y2 -63x3y + 14x2y
Problem :
Simplify (x + 9)(x + 6)
x2 + 15x + 54
Problem :
Simplify (2x - 4)(x + 1)
2x2 - 2x - 4
Problem :
Simplify (2x2 + 3x)(5x - 7)
10x3 + x2 - 21x
Problem :
Simplify (- 3x3 +3)(- 4x2 - 6)
12x5 +18x3 -12x2 - 18
Problem :
Simplify (x2 -4x + 7)(2x2 + 11x - 5)
2x4 +3x3 -35x2 + 97x - 35