Evaluate: 4?18-5?8+?50

Answers (1)

Given question
4sqrt18-5sqrt8+sqrt50
Rightarrow 4sqrt9	imes2-5sqrt4	imes2+sqrt25	imes2
Rightarrow 4sqrt9	imessqrt2-5sqrt4	imessqrt2+sqrt25	imessqrt2
Rightarrow 4	imes3	imessqrt2-5	imes2	imessqrt2+5	imessqrt2
Rightarrow 12sqrt2-10sqrt2+5sqrt2
Rightarrow (12-10+5)	imessqrt2=7sqrt2.

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