x2+7x+10This is not a perfect square trinomial because it equals(x+2)(x+5). x2−9This is not a perfect square trinomial because it equals(x+3)(x−3). So, what does itreallydo for us? Formulafor Completing the Square
2. Solve the following quadratic equations by using completing the square method.(a) 2x^2+5x-2=0(b) -2x^2+7x+8=0(c) -x^2+5x+8=0(d) -x^2-2x+4=0(e) x^2+5x-3=0(f) 2x^2+4x-7=0 相关知识点: 试题来源: 解析 (a) x=-2.8508, x=0.3508(b) x=-0.9075, x=4.4075(c)...
Completing the square was a method that was discovered in order to solve quadratic equations. This method was discovered by Muhammad ibn Musa al-Khwarizmi, a Persian mathematician, astronomer, and geographer. Al-Khwarizmi, also known as the father of Algebra, wrote “The Compendious Book on Cal...
8) Completing the square of the left side of the equation3x^2+√2x-6=0 , the resultingequation is 相关知识点: 试题来源: 解析 B 3[(x+(√2)/6)^2-(37)/(18)]=0 结果一 题目 8 Completing the square of the left side of the quation3x^2+√2x-6=0 the resultingequation is 答案 ...
百度试题 结果1 题目【题目】Rewrite the function by completing the square.g(x)=x^2+15x+54 g(x)=(x+_)^2+(x_1) 相关知识点: 试题来源: 解析 【解析】x^2+15x+54 ax^2+bx+c a=1,b=15,c=54(x+(15)/2)^2=9/4 反馈 收藏 ...
(3) After completing the square, theogn qutonbecoes (x-3/(10))^2=1/4 othesuionae x_1=4/5 x_2=-1/5 (4) Afercompleting the square, the original equationbco cs(x+1)^2=9/2 , SO_x=-1±(3√2)/2(5) After completing the square, the originalquo eoms (x+1/(12))^2=(...
Rewrite the function by completing the square.h(x)=4x^2-36x+81h(x)=+ 相关知识点: 试题来源: 解析 h(x)=4x^2-36x+81 =4(x^2-9x)+81 =4(x^2-9x+(8-1)/4)+8|-8| h(x)=4(x-9/2)^2+0 h(x)=4(x+-4.5)^2+0 反馈 收藏 ...
Add ( 4) to both sides of the equation.( z^2+3z=4)To create a trinomialsquare on the left side of the equation, find a value that is equal to the square of half of ( b).( ((2))^2=((32))^2)Add the term to each side of the equation.( z^2+3z+((32))^2=4+...
结果1 题目 Lawrence writes a trinomial that can be solved by completing the square and cannot be solved by factoring. One of the solutions of his equation is between 4 and 5.Write a possible equation. 相关知识点: 试题来源: 解析 4x^2+28x=226 or 4x^2+28x-226=0 反馈 收藏 ...
百度试题 结果1 题目A. Multiple choice questionsBy completing the square, the equation x2+3 = 4x becomes ().(A) (x-2)^2=7(B) (x+2)^2=21(C) (x-2)^2=1(D) (x+2)^2=2 相关知识点: 试题来源: 解析 1C 反馈 收藏