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4
a
(
a
−
3
b
)
4a(a-3b)
4
a
(
a
−
3
b
)
+
−
.
ln
>
<
×
÷
/
log
≥
≤
(
)
log
x
=
%
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expand(4a(a-3b))
expand 4a(a-3b)
4a(a-3b)
1
Expand by distributing terms.
4
a
a
+
4
a
×
−
3
b
4aa+4a\times -3b
4
a
a
+
4
a
×
−
3
b
2
Use
Product Rule
:
x
a
x
b
=
x
a
+
b
{x}^{a}{x}^{b}={x}^{a+b}
x
a
x
b
=
x
a
+
b
.
4
a
2
+
4
a
×
−
3
b
4{a}^{2}+4a\times -3b
4
a
2
+
4
a
×
−
3
b
3
Simplify
4
a
×
−
3
b
4a\times -3b
4
a
×
−
3
b
to
−
12
a
b
-12ab
−
1
2
a
b
.
4
a
2
−
12
a
b
4{a}^{2}-12ab
4
a
2
−
1
2
a
b
Done
4*a^2-12*a*b
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