Simplify the expression –3(x + 3)2 – 3 + 3x. what is the simplified expression in standard form?

For this case we must simplify the following expression:

We solve the parenthesis:

We apply distributive property to the terms within parentheses:

We add similar terms:

Step-by-step explanation:

We need to remember that

Knowing this, we can simplify  the expression:

Apply Distributive property:

Add like like terms:

Since it has the form , it is already expressed in Standad form.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.