I need to use a special product formula to factor the perfect square trinomial, 25x^2 - 30x +9, I think the answer is, (5x -3)^2 can someone help? Thanks
2007-06-15 21:12:22 · 5 answers · asked by delphiniums 1 in Science & Mathematics ➔ Mathematics
You are right. And I like that you actually attempted the problem before asking! GOOD WORK!
2007-06-15 21:16:33 · answer #1 · answered by EMERGENCY 2 · 0⤊ 0⤋
25x² - 30x + 9
STEP 1
Find factors of 25x²:-
(5x----).(5x----)
Now require factors of +9 that combine with the factors already obtained to give - 30x:-
(5x - 3).(5x - 3) is required answer.
2007-06-16 11:18:40 · answer #2 · answered by Como 7 · 0⤊ 0⤋
(5x-3)(5x-3) = (5x *5x) + (5x*-3) + (-3*5x) + (-3*-3)
=25x^2 -30x + 9
answer yes !!
2007-06-16 04:22:47 · answer #3 · answered by cOPYcAT 5 · 0⤊ 0⤋
you are correct
2007-06-16 04:47:21 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
you are correct
2007-06-16 04:25:33 · answer #5 · answered by detektibgapo 5 · 0⤊ 0⤋