Examine whether the following equation is qua | vedclass

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(A) Given equation: $(x+6)(x+5)=0$Expanding the left side:$x(x+5) + 6(x+5) = 0$$x^2 + 5x + 6x + 30 = 0$$x^2 + 11x + 30 = 0$$A$ quadratic equation is a

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(A) Given equation: $(x+6)(x+5)=0$Expanding the left side:$x(x+5) + 6(x+5) = 0$$x^2 + 5x + 6x + 30 = 0$$x^2 + 11x + 30 = 0$$A$ quadratic equation is an equation of the form $ax^2 + bx + c = 0$,where $a 
eq 0$.In the equation $x^2 + 11x + 30 = 0$,the highest power of the variable $x$ is $2$.Since the equation is in the form $ax^2 + bx + c = 0$ with $a=1$,it is a quadratic equation.

Examine whether the following equation is quadratic or not: $(x+6)(x+5)=0$.

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