Please explain also.
2006-10-23 14:18:10 · 7 answers · asked by moonii 3 in Education & Reference ➔ Homework Help
multipying 3 times 7 =21
x times x = x squared
answer is 21x^2 ... 21(x squared)
2006-10-23 14:20:18 · answer #1 · answered by punjabi007 2 · 0⤊ 0⤋
It is 3 times x times 7 times x.
The letter x represents an unknown number.
Let's say x = 2,
the problem would be (3*2)(7*2)
or (6)(14).
In math, parentheses '( )' mean "multiplied by". So the answer would be 6 * 14 =84.
Since you don't know what x is, you multiply 3*7 and x * x. There, the answer is 21xsquared (written as x^2).
the answer is 21x^2
2006-10-23 21:33:49 · answer #2 · answered by solita 2 · 0⤊ 0⤋
21X^2. 3*7=21 and X*X= X^2 X squared.
2006-10-23 21:20:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
(3x times 7x) = (21x squared)
(21 x squared)
2006-10-23 21:22:08 · answer #4 · answered by jes 2 · 0⤊ 0⤋
21x^2
21x to the power of 2
2006-10-23 21:19:22 · answer #5 · answered by lenkug 2 · 0⤊ 0⤋
21x squared
2006-10-23 21:21:14 · answer #6 · answered by Anonymous · 0⤊ 0⤋
you must be eleventten or retarded, sorry, lo0l
2006-10-23 21:25:34 · answer #7 · answered by bricabrac 3 · 0⤊ 0⤋