unknown54321
unknown54321
09-04-2017
Mathematics
contestada
please help me! i'm begging you
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heyitslara
heyitslara
09-04-2017
The answer for this is B
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apologiabiology
apologiabiology
09-04-2017
complete square
take 1/2 of -7 and square it
(-7/2)²=[tex] \frac{49}{4} [/tex]
add that to both sides
x²-7x+[tex] \frac{49}{4}=\frac{49}{4} [/tex]
factor perfect square
[tex](x- \frac{7}{2})^2=\frac{49}{4} [/tex]
B is answer
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