1.27: Solve the following equations for \(\displaystyle x.\)
a) \(\displaystyle \sqrt{\strut{3x\, -\, 9\,}}\, -\, \sqrt{\strut{2x\, -\, 5\,}}\, =\, 1\)
b) \(\displaystyle \displaystyle{ 9^{\,x^2\, -\, 1}\, -\, 36\, \dot\, \,3^{\,x^2\, -\, 3}\, +\, 3\, =\, 0}\)
c) \(\displaystyle 2\, \sqrt[3]{\strut{x\, +\, 2\,} }\, +\, 3\, =\, \sqrt{\strut{15\, +\, 3x\, }}\)
Ex.1.27(C) Actually i think it is a formula (a+b)^3
a) \(\displaystyle \sqrt{\strut{3x\, -\, 9\,}}\, -\, \sqrt{\strut{2x\, -\, 5\,}}\, =\, 1\)
b) \(\displaystyle \displaystyle{ 9^{\,x^2\, -\, 1}\, -\, 36\, \dot\, \,3^{\,x^2\, -\, 3}\, +\, 3\, =\, 0}\)
c) \(\displaystyle 2\, \sqrt[3]{\strut{x\, +\, 2\,} }\, +\, 3\, =\, \sqrt{\strut{15\, +\, 3x\, }}\)
Ex.1.27(C) Actually i think it is a formula (a+b)^3
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