(3.75-3x)(2.5-2x)=0

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Solution for (3.75-3x)(2.5-2x)=0 equation: 



(3.75-3x)(2.5-2x)=0

We add all the numbers together, and all the variables

(-3x+3.75)(-2x+2.5)=0

We multiply parentheses ..

(+6x^2-7.5x-7.5x+9.375)=0

We get rid of parentheses

6x^2-7.5x-7.5x+9.375=0

We add all the numbers together, and all the variables

6x^2-15x+9.375=0

a = 6; b = -15; c = +9.375;
Δ = b2-4ac
Δ = -152-4·6·9.375
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{15}{12}=1+1/4$

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