Mathematics 67 Online
OpenStudy (anonymous):

use discriminant to determine the number and type of solutions of the equation: 4x^2-12x=-9 choose correct statement: a. the equation has one real number solution b. the equation has two complex number solutions c. the equation has two real number solutions

OpenStudy (anonymous):

first write $4x^2-12x+9=0$ then compute $b^2-4ac$ with $a=4,b=-12,c=9$you get $(-12)^2-4\times 4\times 9=0$ which means there is one real solution

OpenStudy (anonymous):

it also means $4x^2-12x+9$ is a perfect square. it is $(2x-3)^2$

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