1. a) 5(ax + by) = 5ax + 5by
b) 3(x - 2) + 6(7x + 1) = 3x - 6 + 42x + 6 = 45x
c) -8(2x - y + 3z) = -16x + 8y - 24z
2. a) (2x - y)(3y + x) = 6xy + 2x^2 - 3y^2 - xy = 2x^2 + 5xy - 3y^2
b) (5p + 10q)(p - q) = 5p^2 - 5pq + 10pq - 10q^2 = 5p^2 + 5pq - 10q^2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
1. a) 5(ax + by) = 5ax + 5by
b) 3(x - 2) + 6(7x + 1) = 3x - 6 + 42x + 6 = 45x
c) -8(2x - y + 3z) = -16x + 8y - 24z
2. a) (2x - y)(3y + x) = 6xy + 2x^2 - 3y^2 - xy = 2x^2 + 5xy - 3y^2
b) (5p + 10q)(p - q) = 5p^2 - 5pq + 10pq - 10q^2 = 5p^2 + 5pq - 10q^2