Тест на формулы сокращенного умножения .
| \(x^2+y^2\) | \( xy(x+y) \) | \(x^2y+y^2x \) | \(x^2+2xy+y^2 \) | \( x^2+xy+y^2 \) | \((x+y)(x-y) \) |
| \(x^2+9\) | \( (x+3)(x-3) \) | \( x^2+3^2 \) | \(3x(x+3) \) | \( x^2+3x+3^2 \) | \( x^2+6x+9 \) |
| \( a^2-b^2 \) | \( (a-b)(a+b) \) | \(a^2+2ab+b^2 \) | \( a^2-2ab-b^2 \) | \( a^2-2ab+b^2\) | \( a^2-ab+b^2 \) |
| \( 9x^2+1 \) | \( 3x^2+6x+1 \) | \( 9x^2+6x+1 \) | \( 3x^2+3x+1 \) | \( 3x^2+1^2 \) | \( (3x+1)(3x-1) \) |
Репетитор по математике
| \( 4a^2+16ab+16b^2 \) | \( 4a^2+8ab+16b^2 \) | \( 2a^2+8ab+4b^2 \) | \( 4a^2+16ab+16b^2 \) | \( 4a^2+16b^2 \) | \( 2a^2+4b^2 \) |
| \( 7a^2-9x^2 \) | \( 49a^2-9x^2 \) | \( 7a^2-42ax+3x^2 \) | \( (7a-3x)(7a+3x) \) | \( 49a^2-42ax-9x^2 \) | \( 49a^2-42ax+9x^2 \) |
| \( (x-y)^2 \) | \( 2x-2y \) | \( xy-yx \) | \( x^2-2xy-y^2 \) | \( x^2-y^2 \) | \(x^2-2xy+y^2 \) |
| \( (4x-1)^2 \) | \( 4x^2-1^2 \) | \( 16x^2-1 \) | \( 8x-1 \) | \( 16x^2+1 \) | \( -16x^2-1 \) |
| \( 9p^2-4a^2 \) | \( 3p^2-2a^2 \) | \( 81p^2-16a^2 \) | \( 36pa-36ap \) | \( 81p^2+16a^2 \) | \( 81p^2-72ap-16a^2 \) |
| \( 6a(b+c-d) \) | \( 2a(b+c-3d) \) | \( 2a(2b+c+3d) \) | \( 2a(2b+c-3d) \) | \( 4ab(1+ac+2d) \) | \( 2abcd(2a+c+3) \) |
| \( 2(x+2x) \) | \( 2x(1+x) \) | \( x^2(1+x) \) | \( x(1+x) \) | \( x(x+x^2) \) | \( x^2(x+x^2) \) |