It's an algebra problem
-3√(5x3) . √(10x3) =
-3√(5x3) . √(2.5x3) =
-3 . √(5x3) . √(2) . √(5x3) =
-3 . √(2) . 5x3 =
-15x3√(2)
-3v5x^3 x v10x^3
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3 Answers
Hi Chris;
-3v5x^3 x v10x^3
The coefficients of v are -3 and 1...(-3)(1)=-3
(v)(v)=v2
The coefficients of x are (5) and (10)...(5)(10)=50
(x3)(x3)=x6...because exponents 3+3=6
-3v250x6
-3 √(5X^3) * √(10X^3) =
-3 √(50 X^6) = - 15 X^3 √2