2007-07-07 04:02:40 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(3x - 2)(3x + 2) =
9x²- 6x + 6x - 4 =
9x² - 4
- - - - - - -s-
2007-07-07 04:14:19 · answer #1 · answered by SAMUEL D 7 · 1⤊ 0⤋
It's simple. Remember: Whenever two LIKE numbers are being multiplied together with one term in their SUM form and the other in DIFFERENCE form then its answer is the difference between the square of their squares.
Therefore, the answer is:
(9x^2) - 4.
Note: You have to keep the difference term in tact. You CAN NOT write 4 - 9x^2. Look at the difference term to decide with which term should the minus be multiplied.
2007-07-07 04:10:25 · answer #2 · answered by seminewton 3 · 0⤊ 0⤋
via fact the left hand ingredient is an absolute fee, you get 2 eventualities: |2-3x| = -(2-3x) if (2-3x) is damaging and |2-3x| = 2-3x if (2-3x) is beneficial. finding at your given, |2-3x| = 2-3x if and on condition that 2-3x is beneficial.
2016-09-29 06:20:49 · answer #3 · answered by ? 4 · 0⤊ 0⤋
We know that (a-b)*(a+b)= a^2 - b^2
Here let a=3x and b=2
So the solution is (3x)^2 - (2)^2 = 9x^2 - 4
2007-07-07 04:07:45 · answer #4 · answered by CK 1 · 0⤊ 0⤋
Hey there!
Here's the answer.
(3x-2)(3x+2) -->Write the problem.
9x^2-6x+6x-4 -->Use FOIL.
9x^2-4 --> Cancel out the 6x terms.
So the solution is 9x^2-4.
Hope it helps!
2007-07-07 04:48:53 · answer #5 · answered by ? 6 · 0⤊ 0⤋
9 X squared minus 4
2007-07-07 04:08:42 · answer #6 · answered by Niranjana S 2 · 0⤊ 0⤋
(a+b)(a-b) = a^2 - b^2
(3x-2)(3x+2) = 9x^2 - 4
2007-07-07 04:14:46 · answer #7 · answered by aastha000 2 · 0⤊ 1⤋
(3x - 2)(3x + 2) -- Use FOIL
= (3x)(3x) + (3x)(2) + (-2)(3x) + (-2)(2)
= 9x^2 + 6x - 6x - 4
= 9x^2 - 4
2007-07-07 04:15:42 · answer #8 · answered by Anonymous · 0⤊ 0⤋
9x^2 - 4
2007-07-07 04:09:52 · answer #9 · answered by jimbob 6 · 0⤊ 0⤋
WOW, you have like 3485735 questions for math problems. Just do your homework and if you need help look in your math book.
2007-07-07 04:05:52 · answer #10 · answered by Anonymous · 0⤊ 0⤋