Chapter 9.1, Problem 10CYU

To determine

To Find: The given expression if $a=3,b=-4$ and $c=3.5$

  $3{\left(b-1\right)}^2$

Answer to Problem 10CYU

The required answer is 75.

Explanation of Solution

Given information:

  $a=3,b=-4$ and $c=3.5$

Calculation:

  $3{\left(b-1\right)}^2=3{\left(-4-1\right)}^{\begin{array}{l}2\\ \end{array}}$

(Substituting the value of b i..e.-4)

  $=3{\left(-5\right)}^2$

(First solve $-4-1i.e.-5$ )

  $=3\cdot 25$

  $\left\{{\left(-5\right)}^2=-5\times -5or25\right\}$$=75$