Algebra Examples

Simplify (x+y+z)^2
(x+y+z)2
Step 1
Rewrite (x+y+z)2 as (x+y+z)(x+y+z).
(x+y+z)(x+y+z)
Step 2
Expand (x+y+z)(x+y+z) by multiplying each term in the first expression by each term in the second expression.
xx+xy+xz+yx+yy+yz+zx+zy+zz
Step 3
Simplify each term.
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Step 3.1
Multiply x by x.
x2+xy+xz+yx+yy+yz+zx+zy+zz
Step 3.2
Multiply y by y.
x2+xy+xz+yx+y2+yz+zx+zy+zz
Step 3.3
Multiply z by z.
x2+xy+xz+yx+y2+yz+zx+zy+z2
x2+xy+xz+yx+y2+yz+zx+zy+z2
Step 4
Add xy and yx.
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Step 4.1
Reorder y and x.
x2+xy+xy+xz+y2+yz+zx+zy+z2
Step 4.2
Add xy and xy.
x2+2xy+xz+y2+yz+zx+zy+z2
x2+2xy+xz+y2+yz+zx+zy+z2
Step 5
Add xz and zx.
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Step 5.1
Reorder z and x.
x2+2xy+y2+yz+xz+xz+zy+z2
Step 5.2
Add xz and xz.
x2+2xy+y2+yz+2xz+zy+z2
x2+2xy+y2+yz+2xz+zy+z2
Step 6
Add yz and zy.
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Step 6.1
Reorder z and y.
x2+2xy+y2+yz+yz+2xz+z2
Step 6.2
Add yz and yz.
x2+2xy+y2+2yz+2xz+z2
x2+2xy+y2+2yz+2xz+z2
Step 7
Move 2yz.
x2+2xy+y2+2xz+2yz+z2
Step 8
Move y2.
x2+2xy+2xz+y2+2yz+z2
(x+y+z)2
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