ANSWERS
(x+4) (x+2) = x
2
+2x+4x+8
=
x
2
+6x+8
(x+7) (x+4) = x
2
+4x+7x+28
=
x
2
+11x+28
(2x+1) (x+4) = 2x
2
+8x+x+4
=
2x
2
+9x+4
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