Question

Substitute = 1 and y = 3 in each expression and find its value
a) - 40 + 8y +16 ​

Answer 1

Step-by-step explanation:

$solve = = > - 40 + 8y + 16 = 0 \: \: \: \: \\ \\ = > - 40 + 8(1) + 16 = 0 \\ \\ = > - 40 + 24 = 0 \\ \\ = > - 16 = 0 \: \: \: \: ans. \\ \\ value \: of \: this \: equation \: i s\: not \: real \: root \: of \: equation. \: \: \\ \\ \\ = > - 40 + 8(3) + 16 = 0\\ \\ = > - 40 + 24 + 16 = 0\\ \\ = > - 40 + 40 = 0 \\ \\ = > 0 = 0 \: \: \: ans. \\ \\ this \: value \: satisfied \: this \: equation.$