1.) An expression is show: √21x; for which value of x should the expression be further simplified?
a.) 5
b.) 8
c.) 37
d.) 54
2.) An expression is show: √42x; for which value of x should the expression be further simplified?
a.) 11
b.) 13
c.) 20
d.) 55
This did not help at all
I know right TUT
For which value of x must the expression
77x
be further simplified?
A) 13
B) 23
C) 29
D) 33
I assume you meant
√(21x) , and not the way you typed
since 21 = 3x7 , you want either another 3 or 7 in x so that we have at least one perfect square.
none of the first 3 choices contain a 3 or 7 ,but 54 does
so √(21x54)
= √3x7x3x9x2)
= √(81*14)
= 9√14
do the other one the same way