Question

can u please help me

Answer 1

with?

Answer 2

What is the exact value for the expression the square root of 171. - the square root of 19. + the square root of 76.? Simplify if possible.

8 the square root of 57.
the square root of 19.
2 the square root of 57.
4 the square root of 19.

Answer 3

4 * sqrt(19)

Answer 4

u suree

Answer 5

yess(:

Answer 6

171, 19 and 76 all have a GCF of 19,
171/19 = 9
19/19 = 1
76/19 = 4
Now we can conclude:
9 x 19 = 171
1 x 19 = 19
4 x 19 = 76
Now we know
ab−−√=a√×b√

So
(9)×19−−−−−−−√=171

(1)×19−−−−−−−√=19

(4)×19−−−−−−−√=76

Now seperate the square root, so it is sqrt(a) x sqrt(b)
Take the square root of the perfect square...(in brackets)
so we get
319−−√

119−−√

219−−√

Add/Subtract with the appropriate sign...
We get
419