1.

Expand: (1)(a+2)(a−1)(2) (m−4)(m+6)(3) (p+8)(p−3)(4) (13+x)(13−x)(5) (3x+4y)(3x+5y)(6) (9x−5t)(9x+3t)(7) (m+23)(m−73)(8) (x+1x)(x−1x)(9) (1y+4)(1y−9)

Answer»

Expand:
(1)(a+2)(a−1)
(2) (m−4)(m+6)
(3) (p+8)(p−3)
(4) (13+x)(13−x)
(5) (3x+4y)(3x+5y)
(6) (9x−5t)(9x+3t)
(7) (m+23)(m−73)
(8) (x+1x)(x−1x)
(9) (1y+4)(1y−9)



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