which is a solution to the equation? (x - 3)(x - 5) = 35\nx = -8\nx = -5\nx = 2\nx = 10

which is a solution to the equation? (x - 3)(x - 5) = 35\nx = -8\nx = -5\nx = 2\nx = 10
Answer
Explanation:
Step1: Expand the left - hand side
$(x - 3)(x - 5)=x^{2}-5x-3x + 15=x^{2}-8x + 15$ So the equation becomes $x^{2}-8x + 15=35$.
Step2: Rearrange to standard quadratic form
Subtract 35 from both sides: $x^{2}-8x+15 - 35=0$, which simplifies to $x^{2}-8x - 20=0$.
Step3: Factor the quadratic equation
We need two numbers that multiply to - 20 and add up to - 8. The numbers are - 10 and 2. So $x^{2}-8x - 20=(x - 10)(x+2)=0$.
Step4: Solve for x
Using the zero - product property, if $(x - 10)(x + 2)=0$, then $x-10=0$ or $x + 2=0$. So $x=10$ or $x=-2$.
Answer:
$x = 10$ (since it is one of the options)