Question

If a= 5, Find the value of 3a2-2 (a-5)​

Answer 1

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$a = 5 \\ 3 {a}^{2} - 2(a - 5) \\ 3 {a}^{2} - 2a + 10 \\ substitute \: a = 5 \\ 3 \times {5}^{2} - 2(5) + 10 \\ 3(25) - 10 + 10 \\ 75 + 0 \\ 75$

Answer 2

Answer:

here is your answer :

Step-by-step explanation:

3(5)2 - 2(5-5)

3×25 - 2

75-2

73

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