1 |
4 |
1 |
4 |
1 |
4 |
1 |
2 |
A.(3x-2y)(3x+2y) | B.(5x+y)2 | C.(5x-y)2 | D.(5x-2y)2 |
A.4(a+b)(a-b) | B.(4a+b)(4a-b) | C.(2a+b)(2a-b) | D.2(a+b)(a-b) |
A.(1+a+b)(1-a+b) | B.(1+a-b)(1-a+b) | C.(1+a+b)(1-a-b) | D.(1+a-b)(1-a-b) |
A.a2+b2 | B.-a2+b2 | C.a2-ab+b2 | D.-a2-b2 |
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