2a^2+5a+3?
回答 (4)
2017-08-28 1:30 pm
2a² + 5a + 3
= 2a² + (6a + a) + 3
= (2a² + 6a) + (a + 3)
= 2a(a + 3) + (a + 3)
= (a + 3)(2a + 1)
= 2a² + (6a + a) + 3
= (2a² + 6a) + (a + 3)
= 2a(a + 3) + (a + 3)
= (a + 3)(2a + 1)
2017-08-28 1:29 pm
2a²+5a+3
2a²+3a+ 2a+3
a(2a+3) + 1(2a+3)
(2a+3)(a+1)
2a²+3a+ 2a+3
a(2a+3) + 1(2a+3)
(2a+3)(a+1)
2017-08-28 6:44 pm
2a^2+5a+3
= (2a + 3)(a + 1) answer//
= (2a + 3)(a + 1) answer//
2017-08-28 1:38 pm
2a² + 5a + 3
Break 5a into two part(2+3)a
= 2a² + (2a + 3a) + 3
= 2a(a + 1) + 3(a + 1)
= (2a + 3) (a +1)
= (a + 3)(2a + 1)
Break 5a into two part(2+3)a
= 2a² + (2a + 3a) + 3
= 2a(a + 1) + 3(a + 1)
= (2a + 3) (a +1)
= (a + 3)(2a + 1)
收錄日期: 2021-04-18 17:47:02
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