Question

Evaluate the expression when a= 1/4 and b = 6.
16a2 – 4b=

Answer 1

Explanation:

HERE,

a=
`\bold{(1)/(4) }`

b=6

so,

According to the question,

`\bold{16a^2-4b }`

`\bold{16*((1)/(4))^2-4* 6 }`

`\bold{ 16* (1)/(16)-24 }`

`\bold{\cancel{16}* \frac{1}{\cancel{16}}-24 }`

`\bold{1-24 }`

`\bold{ -23 }`