Question

Simplify
$4x(2x + 5) - 1$
And find its value for x=1​

Answer 1

Answer:

$4x(2x + 5) - 1 \\ = > \: 4(1)(2(1) + 5) - 1 \\ 4(2 + 5) - 1 \\ = > 4 (7) - 1 \\ = 28 - 1 = > 27$