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a) 2(t + 10)
b) 2(7 + n)
c) 2(k + 3)
a) 4(x + 2)
b) 4(w – 1)
c) 4(t + 3)
a) x² + 4x, w² – 2w, t² + 6t
b) 2t + 20, 2n + 14, 2k + 6
a) 3t + 6
b) 4k + 8
c) 4c + 16
d) 3a + 24
e) 5x + 10
a) 3(t + 2)
b) 4(k + 2)
c) 4(c + 4)
d) 3(a + 8)
e) 5(x + 2)
a) 2(3y)
b) 3y
c) 10y + 12
d) 2(5y + 6)
a) 8(x + 1)
b) 2x(x – 1)
c) 2x(x + 5)
d) 4x(x + 2)
a) 2x + 21, 2(x – 3) + 27
b) 2(x – 3) + 27 = 2x – 6 + 27 = 2x + 21
((a + b)/2)h = (h(a + b))/2
e.g. a = 3, b = 5, h = 4
3 + 5 = 8
8/2 = 4
4 x 4 = 16
3 + 5 = 8
8 x 4 = 32
32/2 = 16
16 = 16
a) 108
b) 12 x 3 = 36
3 x 3 = 9
4 x 9 = 36
36 / 2 = 18
18 + 36 = 54
12 x 2 = 24
3 x 4 = 12
24 + 12 = 36
3 / 2 = 1.5
1.5 x 36 = 54
a) 4(x – 1)
b) 4(x + 3)
c) 5(x + 2)
Leo T 