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Solve for bb.\newline10b215b=8b1210b^2-15b= 8b -12

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Q. Solve for bb.\newline10b215b=8b1210b^2-15b= 8b -12
  1. Set Equation Equal: First, we need to bring all terms to one side of the equation to set it equal to zero.\newline10b215b(8b12)=010b^2 - 15b - (8b - 12) = 0
  2. Distribute Negative Sign: Now, distribute the negative sign to the terms inside the parentheses. 10b215b8b+12=010b^2 - 15b - 8b + 12 = 0
  3. Combine Like Terms: Combine like terms.\newline10b223b+12=010b^2 - 23b + 12 = 0
  4. Find Factoring Numbers: Next, we need to factor the quadratic equation. We are looking for two numbers that multiply to 10×1210\times12 (120120) and add up to 23-23.
  5. Write Factored Form: The numbers that satisfy these conditions are 20-20 and 3-3 because 20×3=120-20 \times -3 = 120 and 20+3=23-20 + -3 = -23.
  6. Factor by Grouping: Now we can write the factored form using these two numbers. 10b220b10b^2 - 20b + 3b+12 -3b + 12 = 00
  7. Final Factored Form: Factor by grouping. Take out the common factor of 10b10b from the first group and 3-3 from the second group.\newline10b(b2)3(b2)=010b(b - 2) - 3(b - 2) = 0
  8. Final Factored Form: Factor by grouping. Take out the common factor of 10b10b from the first group and 3-3 from the second group.\newline10b(b2)3(b2)=010b(b - 2) - 3(b - 2) = 0 Since both groups contain the common factor (b2)(b - 2), we can factor it out.\newline(b2)(10b3)=0(b - 2)(10b - 3) = 0