Question

Simplify 4x ( 8x - 5 ) +9 at x = 1/2​

Answer 1

Answer:

4X(8x-5)+9

=32x^2 -20x+9

1 1

=32(-------)^2 -20× ------- +9

2 2

1

=32× ------- -10+9

4

=8-1

=7

ans=7

Answer 2

Your answer is -7








Explanation- 32x^-2-20x+9

11


32(——————-)^20- ——————x19
22
1
32x. ———————-10+9



4



8-1



7


Now 7 is your answer





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