Camreece1 Camreece1

13-05-2015
Mathematics

contestada

Expand and simplify these expressions you must show working out:
A. 2x+3(x+5)=
B. 7u-3(2u-3)=

Respuesta :

brookegallagher brookegallagher

13-05-2015

A.
2x + 3(x+5)
2x+(3*x)+(3*5)
2x+3x+15
5x+15
If necessary, you could pull out 5 to make it 5(x+3)
B.
7u-3(2u-3)
7u+(-3*2u)+(-3*-3)
7u+(-6u)+9
7u-6u+9
1u+9
u+9

Hope this helps!

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