Check how easy it is and learn it for the future. Add 1 to each side of the equation.
This equation is in standard form.
K 1 4 2k 9. Take the coefficient of k which is 2 divide by two giving 1 and finally square it giving 1 add 1 to both sides of the equation. Substitute 3k 1 for a 4k 4 for b and 2 2k for c in the quadratic formula frac b sqrt b 2 4ac 2a. 1 1 2k 9 1 combine like terms.
Simple and best practice solution for 2k 1 k 4 equation. Similarly 2 x 5 can also be entered as 2 x 5. The is also optional when multiplying with parentheses example.
For multiplication use the symbol. Free math problem solver answers your algebra geometry trigonometry calculus and statistics homework questions with step by step explanations just like a math tutor. Move all terms containing k to the left all other terms to the right.
9 1 8 2k 8 divide each side by 2. On the right hand side we have. Our solution is simple and easy to understand so don t hesitate to use it as a solution of your homework.
2x 5 can be entered as 2x 5. K 2 2k 1 now the clever bit. A x 2 b x c 0.
4 2 solving k 2 2k 1 0 by completing the square. 1 1 0 0 2k 9 1 2k 9 1 combine like terms. Simplifying 1 2k 9 solving 1 2k 9 solving for variable k.
A symbol is not necessary when multiplying a number by a variable. Set this equal to the product of the denominator of the first fraction and the numerator of the second fraction. 2 x can also be entered as 2x.
Solve for k 9 2k 3 4 k 1 multiply the numerator of the first fraction by the denominator of the second fraction. X 1 x 1. K 4 simplifying k 4.
Subtract 1 from both side of the equation.