How do you write y=−2(x−9)(x+7) in standard form? Algebra Quadratic Equations and Functions Vertex Form of a Quadratic Equation 1 Answer Nghi N. Jul 24, 2016 y=−2(x2−2x+63) Explanation: Develop: y=−2(x−9)(x+7)=−2(x2−2x+63) y=−2x2+4x−126 Answer link Related questions What is the Vertex Form of a Quadratic Equation? How do you find the vertex form of a quadratic equation? How do you graph quadratic equations written in vertex form? How do you write y+1=−2x2−x in the vertex form? How do you write the quadratic equation given a=−2 and the vertex (−5,0)? What is the quadratic equation containing (5, 2) and vertex (1, –2)? How do you find the vertex, x-intercept, y-intercept, and graph the equation y=−4x2+20x−24? How do you write y=9x2+3x−10 in vertex form? What is the vertex of y=−12(x−4)2−7? What is the vertex form of y=x2−6x+6? See all questions in Vertex Form of a Quadratic Equation Impact of this question 4680 views around the world You can reuse this answer Creative Commons License