2007-09-18 13:09:06 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
= (2) (2) (x) (x)
= 4 x ²
2007-09-18 21:23:13 · answer #1 · answered by Como 7 · 1⤊ 0⤋
When you aren't sure, try substitution. For example, plug in 3 for x and see what makes sense.
(2*3)(2*3) = 36, so you know the answer, now experiment to see which way it works: 4X or 4X^2
4X would equal 4*3, or 12, so that doesn't work.
But 4X^2 would equal 4*9, or 36.
And always substitute small numbers when using this method so you can easily do it in your head.
2007-09-18 20:26:15 · answer #2 · answered by Mikey 6 · 0⤊ 0⤋
Hey there!
2x*2x --> 2*2*x*x --> 4*x^2 --> 4x^2.
So the answer is 4x^2.
Hope it helps!
2007-09-18 20:23:43 · answer #3 · answered by ? 6 · 0⤊ 1⤋
2x*2x = 2*2*x*x = 4x^2
2007-09-18 20:14:56 · answer #4 · answered by Anonymous · 0⤊ 0⤋
4x^2
2007-09-18 20:13:45 · answer #5 · answered by egamdliw 2 · 0⤊ 0⤋
4x^2
2007-09-18 20:12:34 · answer #6 · answered by Emily 3 · 0⤊ 0⤋
4x^2
2007-09-18 20:13:20 · answer #7 · answered by goalie9449 1 · 0⤊ 0⤋
4X^2. because two X's multiplied by each other equals X^2. so you're multiplying that and 2*2.
2007-09-18 20:12:23 · answer #8 · answered by Anonymous · 0⤊ 0⤋
4x^2
because 3x3 is 3^2, or nine
2007-09-18 20:12:29 · answer #9 · answered by Mr. Arkansas 3 · 0⤊ 0⤋
2x*2x = 2*2*x*x = 4x^2
good luck!
2007-09-18 20:12:10 · answer #10 · answered by alrivera_1 4 · 0⤊ 0⤋