Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Write the expression in simplest form.
2sqrt(7x)*3sqrt(14x^(2))

Write the expression in simplest form.\newline27x314x2 2 \sqrt{7 x} \cdot 3 \sqrt{14 x^{2}}

Full solution

Q. Write the expression in simplest form.\newline27x314x2 2 \sqrt{7 x} \cdot 3 \sqrt{14 x^{2}}
  1. Write Expression: Write down the given expression.\newlineWe are given the expression 27x×314x22\sqrt{7x} \times 3\sqrt{14x^{2}}. We need to multiply these two square roots together.
  2. Apply Property: Apply the multiplication property of square roots.\newlineAccording to the multiplication property of square roots, a×b=a×b\sqrt{a} \times \sqrt{b} = \sqrt{a \times b}. So, we can multiply the square roots together to get 7x×14x2\sqrt{7x} \times \sqrt{14x^{2}}.
  3. Multiply Coefficients and Roots: Multiply the coefficients and the square roots separately.\newlineThe coefficients are 22 and 33, and the square roots are 7x\sqrt{7x} and 14x2\sqrt{14x^{2}}. Multiplying the coefficients gives us 2×3=62 \times 3 = 6. Multiplying the square roots gives us 7x×14x2\sqrt{7x \times 14x^{2}}.
  4. Simplify Inside Square Root: Simplify the expression inside the square root.\newlineWe have 7x×14x2\sqrt{7x \times 14x^{2}} which simplifies to 98x3\sqrt{98x^{3}}. This is because 7x×14x2=98x37x \times 14x^{2} = 98x^{3}.
  5. Factor Out Perfect Squares: Factor out perfect squares from the square root. We notice that 9898 is 49×249 \times 2 and 4949 is a perfect square (727^2). Also, x3x^{3} can be written as x2×xx^{2} \times x, where x2x^{2} is a perfect square. So, we can rewrite 98x3\sqrt{98x^{3}} as 49×2×x2×x\sqrt{49 \times 2 \times x^{2} \times x}.
  6. Take Square Root of Perfect Squares: Take the square root of the perfect squares.\newlineThe square root of 4949 is 77, and the square root of x2x^{2} is xx. So, we can take these out of the square root to get 7x2×x7x \sqrt{2 \times x}.
  7. Multiply by Coefficient: Multiply the result by the coefficient from Step 33.\newlineWe have 6×(7x×2×x)6 \times (7x \times \sqrt{2 \times x}), which simplifies to 42x×2×x42x \times \sqrt{2 \times x}.

More problems from Multiply radical expressions