please help me with my homework
Year 8 Course book page 98 number 4
Expand and simplify each expression
a x(x+2) + x (x+5)
b z(2z + 1) + z(4z+5)
c u (2u +5)-u(u+3)
d w (6w + 2x) - 2w (2w-9x)
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Answer:
a)x²+2x+x²+5x
=2x²+7x
b) 2z²+z+4z²+5z
=6z²+6z
c)2u²+5u-u²-3u
=u²+2u
d)6w²+2wx-4w²+18wx
=2w²+20wx
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