Khai triển hằng đẳng thức
Họ tên ………………….. NHẨM HẰNG ĐẲNG THỨC 1,2 ,3
1
( 3x+4y)2
=
1
( 3x+4y)2
2
(5x – 6y)2
=
2
( 10y – 3 x)2
3
(7x –9y)(7x+9y)
=
3
(x –11y)(x+11y)
4
(4t+2a)2
=
4
( 3b+5x)2
5
(10x+3)2
=
5
(3 – 4x)2
6
(2– 6n)2
=
6
( x+6y)2
7
(5b+2a)(2a–5b)
=
7
(9a –7y)(9a+7y)
8
(1 –3x)2
=
8
( 8 – 2y)2
9
(<!--[if gte vml 1]> <!--[endif]--><!--[if gte mso 9]--><xml> </xml><![endif]-->+3x)(<!--[if gte vml 1]> <!--[endif]--><!--[if gte mso 9]--><xml> </xml><![endif]--> –3x)
=
9
(1,5x –4a)(1,5x+4a)
10
<!--[if gte vml 1]> <!--[endif]--><!--[if gte mso 9]--><xml> </xml><![endif]-->
=
10
<!--[if gte vml 1]> <!--[endif]--><!--[if gte mso 9]--><xml> </xml><![endif]-->
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Họ tên …………………… NHẨM HẰNG ĐẲNG THỨC 4 và 5
1
(10c+2d)3
1
(x –1)3
2
(5a– 6)3
2
(a+2)3
3
(4a+3)3
3
(c–3)3
4
(2t–3)3
4
(d+4)3
5
(6x+2)3
5
(m+5)3
6
(5y–4)3
6
(n–6)3
7
(2x+1)3
7
(b+7)3
8
(3y–2)3
8
(y–8)3
9
(4x–10)3
9
(z+9)3
10
(5a+1)3
10
(k–10)3
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Họ tên……………….. NHẨM HẰNG ĐẲNG THỨC 6 và 7
1
(3x+4y)(9x2–12xy+16y2)
=………
1
(4x+5y)(16x2–20xy+25y2)
=………
2
(2a–5b)(4a2+10ab+25b2)
2
(5a–2b)(25a2+10ab+4b2)
3
(6x+7y)(36x2–42xy+49y2)
3
(6x+3y)(36x2–18xy+9y2)
4
(3x–2y)(9x2+6xy+4y2)
=………
4
(x–8y)(x2+8xy+64y2)
5
(5b+3d)(…………………..)
5
(a+3x)(………………)
=………
6
(6–4x)(…………………….)
6
(1–4x)(…………………….)
7
(1+5y)(……………………)
7
(a+5)(……………………
8
(2–3t)(……………………..)
8
(6–b)(…………………….)
9
(10a+3)(………………… )
9
(7+x)(…………………….)
10
(4–2z) (………………)
10
(m–8)(…………………….)