Question

Упростите выражение (a-3)²-3a(a-2) СРОЧНО!!

Answer 1

(a-3)²-3a(a-2)=

=a²-6a+9-3a²+6a=

=-(2a²+9)

Answer 2

I can help you with simplifying algebraic expressions. Here is the answer:

(a-3)²-3a(a-2) = a²-6a+9-3a²+6a²-6a = 4a²-12a+9 = (2a-3)²

To simplify an expression, you need to follow these steps:

- Expand any brackets by using the distributive property or the FOIL method. - Combine any like terms by adding or subtracting their coefficients. - Factorize the expression if possible by finding the greatest common factor or using other methods.

You can learn more about simplifying expressions from this [website].

I hope this helps. Have a nice day!Ответь+подробно.+Упростите+выражение+(a-3)²-3a(a-2)+СРОЧНО!!