Equivalence of expressions can be tested informally by

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

a) 0

step-by-step explanation:

i^413 x i^0 = 0 as any number multiplied by a zero is

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25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it