Question

Simplify the expression.
0.3x^2+0.4x^2-0.1x^2

I got 0.6^6
Is that correct

Answer 1

Close. This is all about combining like terms.
\[0.3x^2 + 0.4x^2 - 0.1x^2 \implies 0.6x^2\]

Answer 2

Think of it this way. x^2 can be thought of as a condition for something to be added/subtracted from it. If two terms have x^2 and only x^2, then the coefficients (number beside the x^2) can be added/subtracted. The x^2 however stays the same.

Answer 3

That puts it into perspective thank you.

Answer 4

np :)