2007-06-17 17:02:50 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(a+9)(a+8)
2007-06-17 17:05:27 · answer #1 · answered by bbal40 3 · 0⤊ 0⤋
72 = 9 * 8 and 9 + 8 = 17
a^2 + 17a + 72
= a^2 + 9a + 8a + 72
= a(a + 9) + 8(a + 9)
= (a + 8)(a + 9)
2007-06-18 00:10:42 · answer #2 · answered by a²+b²=c² 4 · 0⤊ 0⤋
a² + 17a + 72
=a² + 9a + 8a + 72
=a(a+9)+8(a+9)
=(a+8)(a+9)
2007-06-18 07:38:49 · answer #3 · answered by CrazyCoder 3 · 0⤊ 0⤋
a^2+17a+72
= a^2 + 9a + 8a + 8*9
= ( a+9)(a+8)
2007-06-18 00:07:40 · answer #4 · answered by davin 2 · 0⤊ 0⤋
(a + 9).(a + 8)
Check
a² + 8a + 9a + 72
a² + 17a + 72 as required.
2007-06-18 06:22:35 · answer #5 · answered by Como 7 · 0⤊ 0⤋
itll equal 17^3+72
2007-06-18 00:05:19 · answer #6 · answered by ? 5 · 0⤊ 0⤋
(a+8)(a+9)
2007-06-18 00:08:13 · answer #7 · answered by Farida 2 · 0⤊ 0⤋
(a+9)(a+8)
darn, someone got it before me :[ ahahha.
2007-06-18 00:05:43 · answer #8 · answered by Monica 2 · 0⤊ 0⤋