Rationalize the denominator in each expression. That is, rewrite the expression so that there is a rational expression in the de
nominator a)((x-9)/√(x-9))b)((x-9)/(√x+3))
1 answer:
Answer:
explanations: we multiply with a rational surd
(x-9)*√(x+9)/(√(x-9)*√(x+9)
=(x-9)√(x+9)/

B.( x-9)/√x+3 =( x-9)*(√x-3)/(√x+3)*(√x-3)
= (x-9)*(√x-3)/x-9
=√x-3
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