Question

Приведи к общему знаменателю. 1/6ab-2b^2=? 1/b^2-9a^2=? 1/(3a+b)^2=? Помогите, пожалуйста! Если кто может!

Answer 1

1.6аb
2.b^2
3.3a+b)^2
Помоему так,но я не уверена

Answer 2

Simplifying the Expressions

Let's simplify the given expressions one by one:

1. 1/6ab - 2b^2

To simplify this expression, we need to find a common denominator for the terms. The common denominator for 6ab and b^2 is 6ab.

So, we can rewrite the expression as:

(1 - 12ab^3)/(6ab)

2. 1/b^2 - 9a^2

To simplify this expression, we need to find a common denominator for the terms. The common denominator for b^2 and 9a^2 is b^2.

So, we can rewrite the expression as:

(1 - 9a^2b^2)/(b^2)

3. 1/(3a+b)^2

To simplify this expression, we can square the denominator:

1/(9a^2 + 6ab + b^2)

Conclusion

To summarize, the simplified expressions are:

1. 1/6ab - 2b^2 = (1 - 12ab^3)/(6ab) 2. 1/b^2 - 9a^2 = (1 - 9a^2b^2)/(b^2) 3. 1/(3a+b)^2 = 1/(9a^2 + 6ab + b^2)

Please note that these simplifications are based on the given expressions and may not be further simplified without additional information or context.