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)...
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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+...
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Solve the given equation by completing the square. [ Show all work.] [ Express the answer in simplest radical form if necessary.]c= − 3c − 18 = 0 相关知识点: 试题来源: 解析 −3, 6WORK SHOWN: c= − 3c − 18 = 0, c= − 3c = 18, c= − 3c + = 18 + , (c...
(1)After completing thesquare, the original equation becomes(x-1)2=6, and the solutions are x=1+√6.(2) Aftercompleting the square, the original equationbecomes(x-2)2=10 000, so x_1=102 ,x2=98. (3) After completing the square, theogn qutonbecoes (x-3/(10))^2=1/4 othes...
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To create atrinomialsquareon the left side of theequation, find a value that is equal to thesquareofhalfofbb. (b2)2=(−3)2(b2)2(-3)2 Add thetermto each side of theequation. x2−6x+(−3)2=6+(−3)2x2-6x+(-3)2=6+(-3)2 ...