Question

calculati ex. 8 a,b,c ..

Answer 1

8.
a) 5x + 7x - 4x =8x
b)4xy - 6xy - (-6xy) = -2xy + 6xy = 4xy
c)$-6a^2b^2 - 4a^2b^2 +5a^2b^2 = -5a^2b^2$
d)$4xy^2z^3 + 3xy^2z^3 +2xy^2z^3 = 9xy^2z^3$