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Factor.\newline7u314u25u+107u^3 - 14u^2 - 5u + 10

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Q. Factor.\newline7u314u25u+107u^3 - 14u^2 - 5u + 10
  1. Identify Common Factors: Look for common factors in pairs of terms.\newlineWe can try to factor by grouping, which involves combining terms that have common factors. We'll look at the first two terms and the last two terms separately.\newlineFirst pair: 7u314u27u^3 - 14u^2\newlineSecond pair: 5u+10-5u + 10
  2. Factor by Grouping: Factor out the greatest common factor from the first pair of terms.\newlineThe greatest common factor of 7u37u^3 and 14u214u^2 is 7u27u^2.\newline7u314u2=7u2(u2)7u^3 - 14u^2 = 7u^2(u - 2)
  3. Factor First Pair: Factor out the greatest common factor from the second pair of terms.\newlineThe greatest common factor of 5u-5u and 1010 is 55.\newline5u+10=5(u+2)-5u + 10 = 5(-u + 2)\newlineNotice that we factored out a positive 55, which makes the second term in the parentheses negative to match the original expression.
  4. Factor Second Pair: Rewrite the original expression using the factored pairs.\newline7u314u25u+10=7u2(u2)+5(u+2)7u^3 - 14u^2 - 5u + 10 = 7u^2(u - 2) + 5(-u + 2)
  5. Rewrite Using Factored Pairs: Look for a common binomial factor in the two new terms.\newlineWe can see that the binomials (u2)(u - 2) and (u+2)(-u + 2) are not the same, but (u+2)(-u + 2) is the negative of (u2)(u - 2). We can factor out 1-1 from the second term to make the binomials match.\newline7u2(u2)+5(u+2)=7u2(u2)5(u2)7u^2(u - 2) + 5(-u + 2) = 7u^2(u - 2) - 5(u - 2)
  6. Identify Common Binomial Factor: Factor out the common binomial factor.\newlineNow that we have a common binomial factor of (u2)(u - 2), we can factor it out.\newline7u314u25u+10=(u2)(7u25)7u^3 - 14u^2 - 5u + 10 = (u - 2)(7u^2 - 5)