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Solve the quadratic by factoring.

5x^(2)-15 x+7=6x+3
Answer: 
x=

Solve the quadratic by factoring.\newline5x215x+7=6x+3 5 x^{2}-15 x+7=6 x+3 \newlineAnswer: x= x=

Full solution

Q. Solve the quadratic by factoring.\newline5x215x+7=6x+3 5 x^{2}-15 x+7=6 x+3 \newlineAnswer: x= x=
  1. Write Standard Form: Write the quadratic equation in standard form by moving all terms to one side.\newlineSubtract 6x6x and 33 from both sides of the equation.\newline5x215x+7=6x+35x^2 - 15x + 7 = 6x + 3 becomes 5x215x6x+73=05x^2 - 15x - 6x + 7 - 3 = 0.\newlineCombine like terms.\newline5x221x+4=05x^2 - 21x + 4 = 0.
  2. Subtract Terms: Factor the quadratic equation.\newlineWe need to find two numbers that multiply to 5×4=205 \times 4 = 20 and add up to 21-21.\newlineThe numbers that satisfy these conditions are 20-20 and 1-1.\newlineRewrite the middle term using these two numbers.\newline5x220xx+4=05x^2 - 20x - x + 4 = 0.
  3. Factor Quadratic Equation: Factor by grouping.\newlineGroup the terms to factor by common factors.\newline(5x220x)(x4)=0(5x^2 - 20x) - (x - 4) = 0.\newlineFactor out the common factors from each group.\newline5x(x4)1(x4)=05x(x - 4) - 1(x - 4) = 0.
  4. Factor by Grouping: Factor out the common binomial factor.\newlineSince both terms contain (x4)(x - 4), factor it out.\newline(5x1)(x4)=0(5x - 1)(x - 4) = 0.
  5. Factor Common Binomial: Solve the factored equation for xx. Set each factor equal to zero and solve for xx. 5x1=05x - 1 = 0 and x4=0x - 4 = 0. Solve the first equation: 5x=15x = 1 so x=15x = \frac{1}{5}. Solve the second equation: x=4x = 4.