42 x 3 + 42 x 5 + 42 x 4 - 84
= 42 x 3 + 42 x 5 + 42 x 4 - 42 x 2
= 42 x ( 3 + 5 + 4 - 2 )
= 42 x 10
= 420
42x3+42x5+42x4-84=42x3+42x5+42x4-42.2=42.(3+5+4-2)=42.10=420
42 X 3 + 42 X 5 + 42 X 4 - 84
42 X 3 + 42 X 5 + 42 X 4 - 42 X 2
42 X 3 + 42 X 5 + 42 X 2
42 X (3 +5 + 2)
42 X 10
420
42x3+42x5+42x4-84
=42x3+42x5+42x4-42x2
=42x(3+5+4-2)
=42x10
=420
42x3+42x5+42x4-84
=42x3+42x5+42x4-42x2
=42x(3+5+4-2)
=42x10
=420
42x3+42x5+42x4-84
=42x3+42x5+42x4-42x2
=42x(3+5+4-2)
=42x10
=420
