# Ulangan Harian 1 _ Bentuk Aljabar (Algebraic Expression)

20 Pertanyaan  I  By Purnawanto
Tes ini dibuat oleh Purnawanto, S.Pd, M.Si guru Matematika SMP Negeri 1 Tebing Tinggi

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 1 Find the GCF of 36a2b and 81ab2
 1 12ab
 2 3a2b
 3 9ab
 4 3ab
 2 Find the degree of the polynomial 22x5y + 13x7 + 4xy5 + x4y5
 1 7
 2 9
 3 13
 4 22
 3 Factor the trinomial x2 – 11x – 42.
 1 (x – 14)(x – 3)
 2 (x – 14)(x +3)
 3 (x + 14)(x + 3)
 4 (x + 14)(x – 3)
 4 Find the product j(j + 2).
 1 j2 + 2
 2 2j + 2
 3 3j
 4 j2 + 2j
 5 Find the product (6 + 3b)(6 – 3b)
 1 36 + 36b + 9b2
 2 36 - 9b2
 3 36 + 36b - 9b2
 4 36 + 9b2
 6 Factor 10x2 + 23x + 6 is ....
 1 (10x + 2)(x + 3)
 2 (5x + 3)(2x + 2)
 3 (5x + 2)(2x + 3)
 4 (10x + 3)(x + 2)
 7 The degree of the polynomial -4b2c2 + 5ac5 - abc is ....
 1 3
 2 4
 3 5
 4 6
 8 Find the product (3a + b)2.
 1 6a2 - 6ab + b2
 2 6a2 + 3ab + b2
 3 9a2 - b2
 4 9a2 + 6ab + b2
 9 Find the product of 3 – 4x and 3 + 4x.
 1 6
 2 9 – 16x2
 3 6 + 8x
 4 9 + 16x2
 10 Factor the polynomial 3cd2 + 9b3.
 1 cannot be factored
 2 3c(d2 + 3b3)
 3 c(3d2 + 9b3)
 4 3(cd2 + 3b3)
 11 Factor the polynomial 6x2 + 2x.
 1 3x(2x + 1)
 2 2x(3x + 1)
 3 2x2(3x + 1)
 4 3x2(2x + 1)
 12 Factor the trinomial 4x2 + 12x + 9.
 1 (2x + 3)2
 2 (2x + 3)(3x + 2)
 3 (2x + 3)(2x – 3)
 4 (2x – 3)2
 13 Find the sum (b3 – 3b2 + 5b) + (–4b3 + 3b2 – 8b) = ....
 1 –3b3 – b2 – 3b
 2 –3b3 – 3b
 3 –3b3 – 3b + 1
 4 –3b3 + b2 – 3b
 14 Find the product (2x – 4y)(-7x + 2y).
 1 -5x – 2y
 2 -14x2 + 32xy – 8y2
 3 14x2 – 32xy + 8y2
 4 5x + 2y
 15 Find the sum (–5x + 6) + (–2x – 7) = ....
 1 –7x + 13
 2 –7x + 1
 3 7x + 13
 4 –7x – 1
 16 The coefficients for the variables a2 and ab2 in 2a2 – 4a + 4ab2 – 3b2  are, respectively ....
 1 -4 and -3
 2 -4 and 4
 3 2 and 4
 4 2 and -3
 17 The area of a square is x2 – 16x + 64 square units. Find the perimeter.
 1 (4x – 32) units
 2 (x – 8) units
 3 (x + 8) units
 4 (4x + 32) units
 18 Refer to the diagram below. Find the area of the shaded region in simplest form.
 1 3x2 + 42x
 2 3x2 + 7x
 3 3x2 + 7
 4 3x2 + 42
 19 The similar terms in 3p2q + 5pq2 + 3p2q2 – 4pq2 are ....
 1 3p2q and -4pq2
 2 3p2q and 3p2q2
 3 3p2q2 and 5pq2
 4 5pq2 and -4pq2
 20 Factor the trinomial x2 – 2x – 15 is ....
 1 (x – 5)(x + 3)
 2 (x – 2)(x – 7)
 3 (x – 2)(x + 7)
 4 (x – 5)(x – 3)
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