Tìm tập xác định của hàm số z = f(x, y) = x^2-2x-4y^2-4y.

B) 4y(3x − 5y)(3x + 5y). C) 4y(3x − 5y)(3x − 5y). D) 4y(9x ... Given x = 2 and y = −3, evaluate the expression given below. 2x2 ... Dec 3, 2021 ... x^2+y^2 +2x - 4y - 8 = 0 Here are 2 methods: 1️⃣ Compare quadratic x²+y²+2fx+2gy+c = 0 & centre (-f,-g) 2f = 2 ⟹ f =1 also 2g = -4 ⟹ g = -2 so ... Apr 17, 2025 ... ... ( x ) and ( y ). Steps to Rewrite the Equation. Rearrange the equation: [ x^2 - 2x - 4y^2 - 8y = 7 ]. Complete the square for ( x ): Take the ... Apr 6, 2018 ... 2x ? 4y + 1, D = {(x, y) | 0 ? x ? 2, 0 ? y ? 3}. Find the absolute ... For each of the exponential functions, convert it to the form y = Aekx. (a) y = 5x Solution: y = e(ln 5)x. (b) y = 52x Solution: y = e(2 ln 5)x. Mar 18, 2014 ... Find all local maximum and minimum values and any saddle points of the following function: f(x,y) = 9 - 2x + 4y - x^2 -4y^2 Bestimmen Sie das Volumen des RotationskSrpers, der durch Rotation des durch den Funktionsgraphen von y = x/x 2-16 (x e [ 4; 8 ]) und der. Dec 5, 2012 ... x² + 2x + y² + 4y = 5. dy. -(x+1). 2(13+1). (a) Show that dx 2(1,3. (b) Write an equation for the line tangent to the curve at the point (-2, 1) ... Mar 21, 2022 ... I put this bad boy in Wolfram Alpha and it returned (xy-1)*(y+x+3) but it skipped lots of steps in between,I don't know which factors to group or what ... ... two ones you will get x3, x2, or x. d) Using the same reasoning you ... 6) 8(x2 -2)(2x4 + 2x2 + 4). 7) (3x3 + 8)(3x3 – 8). 8) 2(5x2 – 32). Pg 77: 1) (x ...