1.

Simplify the following 4√15 x 3√3

Answer»

Step-by-step EXPLANATION:

4 \sqrt{15}  \times 3 \sqrt{3}  \\  = 12 \sqrt{45}   = 12 \sqrt{3 \times 3 \times 5}  \\  = 12 \times 3 \sqrt{5} \\  = 36 \sqrt{5}



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