Question

Expand (2+3x)^3

Answer 1

just take whats inside the parentheses and cube it right?

Answer 2

OR do you take (2+3)(2+3)(2+3)

Answer 3

yah or do the shortcut thing .

Answer 4

Direct expansion would be faster I think

Answer 5

so is the answer 8 +27x^3

Answer 6

Yeah, expand (2+3x)(2+3x)(2+3x)

Answer 7

wrong Archej1

Answer 8

\((2+3x)(2+3x)(2+3x)=(9x^2+12x+4)(2+3x)=...\)

Answer 9

He/she forgot the x,x^2 terms

Answer 10

What austinL said

Answer 11

\((ax^2+bx+c)(d+ex)=(ax^2)(d)+(bx)(d)+(bx)(d)+(ax^2)(ex)+(bx)(ex)+(c)(ex)\)

Answer 12

\(...+(c)(ex)\)

Answer 13

Here' s the Shortcut .

Cube the First term +squared the first term multiply to the second term times 3 + squared the last term multiply to the first term times 3 + cubed the last term .

Answer 14

it is easy if you know that . :))))

Answer 15

If you do it my way, you are guaranteed a correct answer if you are solid in your algebra skills.