7√320+√3-2√56+√5-3√215+3√2
Answers
Answer:
Generally, you don't want to have radical at the denominators. So, let's say that we want to simplify the expression
√
a
√
b
, where
a
and
b
can be any expression you want. Since, of course,
√
b
√
b
=
1
, we can multiply it without changing the value of our expression, so we have
√
a
√
b
=
√
a
√
b
⋅
√
b
√
b
. The advantage is that now we observe that
√
b
⋅
√
b
=
b
, and so our expression becomes
√
a
b
b
, and we got rid of the radical at the denominator.
Step-by-step explanation:
PLZZZ MAKE ME AS A BRAINILIST
Generally, you don't want to have radical at the denominators. So, let's say that we want to simplify the expression
√
a
√
b
, where
a
and
b
can be any expression you want. Since, of course,
√
b
√
b
=
1
, we can multiply it without changing the value of our expression, so we have
√
a
√
b
=
√
a
√
b
⋅
√
b
√
b
. The advantage is that now we observe that
√
b
⋅
√
b
=
b
, and so our expression becomes
√
a
b
b
, and we got rid of the radical at the denominator.
Step-by-step explanation:
PLZZZ MAKE ME AS A BRAINILIST