(x2 + 3x + 1)(x2 + x + 2)
(x^2 + 3x + 1) * (x^2 + x + 2) = x^4 + x^3 + 2x^2 + 3x^3 + 3x^2 + 6x + x^2 + x + 2; = x^4 + 4x^3 + 6x^2 + 7x + 2
Question
Updated 5/1/2015 11:27:35 AM
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(x^2 + 3x + 1) * (x^2 + x + 2)

= x^4 + x^3 + 2x^2 + 3x^3 + 3x^2 + 6x + x^2 + x + 2;

= x^4 + 4x^3 + 6x^2 + 7x + 2
Confirmed by jeifunk [5/1/2015 11:30:35 AM]

Questions asked by the same visitor
Subtract 8x - 8y + 9 from 5x - 8y -z
Question
Updated 4/24/2015 11:19:10 AM
(5x - 8y -z) - (8x - 8y + 9)
= 5x - 8y -z - 8x + 8y - 9
= -3x - z - 9
Confirmed by jeifunk [4/24/2015 11:22:45 AM]
Simplify 8 + 3{x - 2[x + 5(x + 3)]}.
Question
Updated 4/24/2015 7:00:12 PM
8 + 3{x - 2[x + 5(x + 3)]}
= 8 + 3{x - 2(x + 5x + 15)}
= 8 + 3{x - 2(6x + 15)}
= 8 + 3(-11x - 30)
= 8 - 33x - 90
= -33x - 82
Confirmed by jeifunk [4/25/2015 10:16:35 AM]
(y + z)3
Question
Updated 4/25/2015 5:39:19 AM
(y + z)3
= (y + z)*(y + z)(y + z)
= (y^2 + 2yz + z^2)(y + z)
= (y^3 + 2y^2z + yz^2 + y^2z + 2yz^2 + z^3)
= y^3 + 3y^2z + 3yz^2 + z^3
Confirmed by jeifunk [4/25/2015 5:39:13 AM]
Factor this expression mn - 4m - 5n + 20
Question
Updated 5/1/2015 11:15:24 AM
mn - 4m - 5n + 20 = (m-5) (n-4)
find the product of (6 - d)(d 2 - 5 + 3d)
Question
Updated 5/1/2015 11:24:46 AM
(6 - d) * (d^2 - 5 + 3d)

= 6d^2 - 30 + 18d - d^3 + 5d - 3d^2;

= -d^3 + 3d^2 + 23d - 30
Confirmed by jeifunk [5/1/2015 11:31:52 AM]
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