Answer:
X = 2
1.
2x + 5
2(2) + 5
4 + 5
= 9
2.
4x - 7
4(2) - 7
8 - 7
= 1
3.
5(x - 1)
5 (2 - 1)
5(1)
= 5
4.
2x² + 3x + 1
2(2)² + 3(2) + 1
8 + 6 + 1
14 + 1
= 15
X = 3
2(3) + 5
6 + 5
= 11
4(3) - 7
12 - 7
5 (x - 1)
5 (3 - 1)
5(2)
= 10
2(3)² + 3(3) + 1
18 + 9 + 1
27 + 1
= 28
Step-by-step explanation:
hope it helps, sorry if mali²
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Answers & Comments
Answer:
X = 2
1.
2x + 5
2(2) + 5
4 + 5
= 9
2.
4x - 7
4(2) - 7
8 - 7
= 1
3.
5(x - 1)
5 (2 - 1)
5(1)
= 5
4.
2x² + 3x + 1
2(2)² + 3(2) + 1
8 + 6 + 1
14 + 1
= 15
X = 3
1.
2x + 5
2(3) + 5
6 + 5
= 11
2.
4x - 7
4(3) - 7
12 - 7
= 5
3.
5 (x - 1)
5 (3 - 1)
5(2)
= 10
4.
2x² + 3x + 1
2(3)² + 3(3) + 1
18 + 9 + 1
27 + 1
= 28
Step-by-step explanation:
hope it helps, sorry if mali²