Bonsoir
1) (2x+3)(x+4)
= 2x² + 8x + 3x + 12
= 2x² + 11x + 12
2) (-1 +3x) (5x +3)
= -5x - 3 + 15x² + 9x
= 15x² + 4x - 3
3) (-2 -x) (-x -6 )
= 2x + 12 + x² + 6x
= x² + 8x + 12
Bonsoir,
1) (2x + 3)(x + 4) = 2x² + 8x + 3x + 12 = 2x² + 11x + 12
2) (-1 + 3x)(5x + 3) = -5x - 3 + 15x² + 9x = 4x + 15x² - 3
3) (-2 - x)(-x - 6) = 2x + 12 + x² + 6x = 8x + x² + 12
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Verified answer
Bonsoir
1) (2x+3)(x+4)
= 2x² + 8x + 3x + 12
= 2x² + 11x + 12
2) (-1 +3x) (5x +3)
= -5x - 3 + 15x² + 9x
= 15x² + 4x - 3
3) (-2 -x) (-x -6 )
= 2x + 12 + x² + 6x
= x² + 8x + 12
Verified answer
Bonsoir,
1) (2x + 3)(x + 4) = 2x² + 8x + 3x + 12 = 2x² + 11x + 12
2) (-1 + 3x)(5x + 3) = -5x - 3 + 15x² + 9x = 4x + 15x² - 3
3) (-2 - x)(-x - 6) = 2x + 12 + x² + 6x = 8x + x² + 12