Since the equation 4x2+12x+c=0 has equal roots, we have Δ=0. 122−4(4)c=0 144−16c=0 c=9. 由于方程4x2+12x+c=0有等根,可得Δ=0. 122−4(4)c=0 144−16c=0 c=9. (2) y =p(x)−169 =4x2+12x−160 (by(1)) =4(x+8)(x−5) Thus, the x-intercepts ...
1. (Mathematics) a mathematical statement that two expressions are equal: it is either an identity in which the variables can assume any value, or a conditional equation in which the variables have only certain values (roots) 2. the act of regarding as equal; equating 3. the act of making...
If the equation x^(2)+lambda x+mu=0 has equal roots and one root of the equation x^(2)+lambda x-12=0 is 2 ,then (lambda,mu)=
I went to Christopher Danielson’s session on Definitions. Two things stuck out to me there: his reasoning for originally doing a hierarchy of hexagons was that it fought against status issues, since there was no pre-knowledge as with quadrilaterals; when asking if something is a vehicle, so...
18 If the equation in x, x^2+mx+n=0 , has two equal real roots, then a pair of real values of m and n that satisfies the condition could be m =and n= 相关知识点: 试题来源: 解析 18 2 1 (can be any values of m and n as long as they satisfy m2 = 4n ) ...
If the equation(3x)2+(27×31/p−15)x+4=0has equal roots thenp= View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and CBSE, UP...
and the unknowns for which the functional outputs are equal are called solutions or roots. We say that the solutions satisfy the given equation. For example 3x– 6 = 0 is an equation in one unknown with solutionx= 2, andx2+y2= 25 is an equation in two unknowns, one of whose solut...
百度试题 结果1 题目4. Given the quadratic equation x^2+px+9=0 has two equal roots. Find the value of p . 相关知识点: 试题来源: 解析 p=-6,6 反馈 收藏
doi:10.1080/00359191409519533W.N.Roseveare M.A.LawrenceCrawfordTaylor & Francis GroupTransactions of the South African Philosophical Society
百度试题 结果1 题目题目 20 Equation x2-mx-1=0 has( ). (A)two distinct real roots (B)two equal real roots (C)no real roots (D)at least one real root相关知识点: 试题来源: 解析 优质解答反馈 收藏