Question

a)-2x-4y- (-6y)=
b)4a2+3b- (9a2-5b)=
c)(7f+2g)- (+9f+5g)=
d)-8e+ 3f2 - (-5e+2f2)=
e)5h2-3k- (+2h2-k)=
f)-3z +5w- (-7z-8w)=
g)(-6a+b2)-(2a-3b2)=

Answer 1

a)
-2x-4y-(-6y)=
-2x-4y+6y=
-2x+2y

b)
4a^2+3b-(9a^2-5b)=
4a^2+3b-9a^2+5b=
-5a^2+8b

c)
(7f+2g)-(+9f+5g)=
7f+g-9f-5g=
-2f-4g

d)
-8e+3f^2-(-5e+2f^2)=
-8e+3f^2+5e-2f^2=
-3e+f^2

e)
5h^2-3k-(+2h^2-k)=
5h^2-3k-2h^2+k=
3h^2-2k

f)
-3z+5w-(-7z-8w)=
-3z+5w+7z+8w=
13w+4z

g)
(-6a+b^2)-(2a-3b^2)=
-6a+b^2-2a+3b^2=
-8a+4b^2

:)