jaxkso
jaxkso
02-02-2017
Mathematics
contestada
Solving quadratics equations by taking square root
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mohsan573
mohsan573
02-02-2017
x^2=1 when you apply square root then the value of X is
X=-1,1
2---
a^2+1=19
subtract 1 on both side
a^2=19-1
a^2=18
taking square on both side
a=Square root(18)
the answer is shown in diagram
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