Question

If 3x-4= 17 then the value of 5x² +3x​

Answer 1

Answer:

Value of 5x² +3x​ = 266

Step-by-step explanation:

First we find the value of x

• 3x - 4 = 17
• 3x       = 17+ 4
• 3x       = 21
• x         = 21/3
• x         = 7

Now substitute the value of x in 5x² +3x​

• =5x² +3x​
• =5(7)² +3*7
• =5 * 49 + 21
• = 245 + 21
• = 266

Answer 2

Answer:

3x = 17

x = 17 - 4 /3

put the value of x in equation :-

5x² + 3x

5 * 17 - 4 /3 + 3 * 17 - 4 /3

81/3 +3

42/3

14

answer :- 14

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