Question

sqrt 7x (sqrt x -7 sqrt 7) ?

Answer 1

\[\sqrt{7x}(\sqrt{x}-7\sqrt{7})\]

Answer 2

@$w3G_Godd

Answer 3

@johnweldon1993

Answer 4

@jdoe0001

Answer 5

@skullpatrol

Answer 6

\[\sqrt{a} * \sqrt{b} = \sqrt{a*b}\]

Answer 7

So first use distributive property that is if we have x * (a - b) = x * a - x * b

Then use above rule ,,

Answer 8

So using distributive property we get \[\sqrt{7x}*(\sqrt{x } - 7\sqrt{7}) = \sqrt{7x}*\sqrt{x} - \sqrt{7x}*7\sqrt{7} \]

Answer 9

Now use √a∗√b=√(a*b)
So we get \[\sqrt{7x^2} - 7*\sqrt{x*7^2} = x \sqrt{7} - 7*7\sqrt{x}= x \sqrt{7} - 49\sqrt{x}\]

Answer 10

thanks :)

Answer 11

You are welcome :) Sam :)

Answer 12

sorry i just saw this :(