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x^(2) - 55 = 26

User BdEngineer
by
4.8k points

1 Answer

4 votes

Answer:
x=9,\:x=-9

Steps:


x^2-55=26


\mathrm{Add\:}55\mathrm{\:to\:both\:sides}


x^2-55+55=26+55


\mathrm{Simplify}


x^2=81


\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=√(f\left(a\right)),\:\:-√(f\left(a\right))


x=√(81),\:x=-√(81)


√(81)= 9


-√(81)=-9

So That Equals:


x=9,\:x=-9

#
Hardnessed To Perfection

User Michel Alonso
by
5.5k points