200以上 (x y)^2-4xy 191384-(x+y)^2-4xy

Find the implicit derivative (d/dx) (x^24x*yy^2=4) Apply implicit differentiation by taking the derivative of both sides of the equation with respect to the differentiation variable The derivative of the constant function (4) is equal to zero The derivative of a sum of two or more functions is the sum of the derivatives of each function

(x+y)^2-4xy-I need help solving this past exam question, the professor posted exam questions with out solutions to last year's exam, I tried reduction of order, however that seemed to complicate things And th 4xy 6xz When factorising algebraic expressions treat them just as ordinary numbers Ascertain what the common factors are The factors of 4xy are 2 x 2 x 'x' x y The factors of 6xz are 2 x 3 x 'x' x z The factors common to both expressions are 2