Expand the Expression: Finding (x-x²)² Step by Step

(xx2)2= (x-x^2)^2=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:05 Let's make it simple.
00:08 We'll use shortened multiplication formulas to expand the parentheses.
00:17 Here, the letter X represents A in our formula.
00:24 And X squared represents B in the formula.
00:31 So, let's substitute into the formula and solve together.
00:46 Time to solve the multiplications step by step.
00:53 Great job! And that's how we find the solution to the problem.

Step-by-step written solution

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1

Understand the problem

(xx2)2= (x-x^2)^2=

2

Step-by-step solution

To solve the expression (xx2)2(x-x^2)^2, we will use the square of a binomial formula (ab)2=a22ab+b2(a-b)^2 = a^2 - 2ab + b^2.

Let's identify aa and bb in our expression:

  • Here, a=xa = x and b=x2b = x^2.

Applying the formula:

(xx2)2=(x)22(x)(x2)+(x2)2(x - x^2)^2 = (x)^2 - 2(x)(x^2) + (x^2)^2

Calculating each part, we get:

  • (x)2=x2(x)^2 = x^2
  • 2(x)(x2)=2x3-2(x)(x^2) = -2x^3
  • (x2)2=x4(x^2)^2 = x^4

Combining these results, the expression simplifies to:

x42x3+x2x^4 - 2x^3 + x^2

Therefore, the expanded form of (xx2)2(x-x^2)^2 is x42x3+x2\boxed{x^4 - 2x^3 + x^2}.

3

Final Answer

x42x3+x2 x^4-2x^3+x^2

Practice Quiz

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Declares the given expression as a sum

\( (7b-3x)^2 \)

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