Question

la1" title="x {}^{2} - 2ax + a {}^{2} - b = 0" alt="x {}^{2} - 2ax + a {}^{2} - b = 0" align="absmiddle" class="latex-formula">
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Answer 1

Answer:

The answer is the last line.

Step-by-step explanation:

Use the quadratic formula

a = 1

b = -a

c = a^2 - b

x = -b +/- sqrt(b^2 - 4ac)

      =================

                 2a

x = a +/- sqrt(a^2 - 4(1)*(a^2 - b)

    ========================

                     2

x = a +/- sqrt(a^2 - 4a^ + 4b)

    =====================

                     2

x = a +/- sqrt(4b - 3a^2)

    ===================

                   2