Question
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
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
Answers
Reiny
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
√(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
Anonymous
An expression is show: √65x; for which value of x should the expression be further simplified?
41
56
Anonymous
Absolutamente nada
piper
For which value of x must the expression
77x
be further simplified?
A) 13
B) 23
C) 29
D) 33
77x
be further simplified?
A) 13
B) 23
C) 29
D) 33
Anonymous
This did not help at all
Anonymous
I know right TUT