Question

the
square of 9m+1/4​

Answer 1

Answer:

= 81m² + 9/2m + 1/16

Step-by-step explanation:

= (9m + 1/4)²

Use binomial theorem (a+b)² = a² + 2ab + b² to expand  (9m + 1/4)²

= 81m² + 9/2m + 1/16

Answer 2

Answer:

85.5625

Step-by-step explanation:

given, (9×0.25)                                                          [0.25 is decimal form of $\frac{1}{4}$]

so, square = 9.25 × 9.25 = 85.5625

I answered in decimal form.