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Frankie103947
19.07.2019 •
Mathematics
Use the discriminant to determine the number and type of solutions for the following equation. 12x2 + 10x + 5 = 0 a two irrational solutions b one rational solution c zero real solutions d two rational solutions
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Ответ:
D=b²-4ac
Implication of discriminant is as follows:
D<0 two zeros that are complex conjugate
D=0 one real zero of multiplicity 2
D>0 two distinct real zers
D= (+ve perfet square) two distinct rational zeros
From:
12x^2+10x+5=0
plugging in the equation we get:
10²-4×12×5
=100-240
=-140
thus
D<0
Answer is:
A two irrational solutions
Ответ:
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