1.Addition:
1.(3(4 + 5)
3x4 + 3x5
12 + 15
= 27
2.(2(6 + 7)
=2x6 + 2x7
=12 + 14
= 26
2.Subtraction:
1.(5(10 - 3)
=5x10 - 5x3
=50 - 15
= 35
2.(4(8 - 2) =
=4x8 - 4x2
=32 - 8
= 24
3.Combining Addition and Subtraction:
1.(6(7 + 2 - 1)
=6x7 + 6x2 - 6x1
= 42 + 12 - 6
= 48
2.(3(5 - 2 + 4)
= 3x5 - 3x2 + 3x4
= 15 - 6 + 12
= 21
Using Variables:
1.(a(b + c)
= axb + axc
2.(2x(3y + 4z)
=2x x 3y + 2x x 4z
=6xy + 8xz