1.

If 4a - 3 = 13, then find the value of 10a2 - 5a + 6.​

Answer»

Step-by-step explanation:

4a - 3 = 13

4a = 13 + 3 = 16

4a = 16

a = 16/4 = 4

so, a = 4

Putting the value of a = 4 in 10a2 - 5A + 6

we have, 10 x (4)2 - 5 x 4 + 6

= 160 - 20 + 6

= 160 - (20- 6 )

= 160 - 14

= 146


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