Question

If4a - 3 =13,then find the value of 10a square -5a+6

Answer 1

since
4a-3=13

then

4a=13+3,

4a=16

a=16/4=4

therefore

10a²-5a+6,

10(4)²-5(4) +6,

160-20+6,

146✓✓✓✓

Answer 2

Heya!!

4a - 3 = 13

=) 4a = 13 + 3

=) a = 16/4

=) a = 4

Then, A/q,

10a^2 -5a + 6

= 10(4)^2 - 5(4) + 6 [ a = 4]

= 10*16 - 20 + 6

= 160 - 20 + 6

= 166 - 20

= 146

Hence, the val is 146.

Hope it helps :)