Question

Evaluate the expression if a=2,b=-3,C=-1, and D=4


-2(b^2-5c)

Answer 1

`\qquad \qquad \bf \huge\star \: \: \large{ \underline{Answer} } \huge \: \: \star`

• Equivalent value = -28

`\textsf{ \underline{\underline{Steps to solve the problem} }:}`

`\qquad❖ \: \sf \: - 2( {b}^(2) - 5c)`

( put the values )

`\qquad❖ \: \sf \: - 2 \{( - 3) {}^(2) - 5( - 1) \}`

`\qquad❖ \: \sf \: - 2(9 - (- 5))`

`\qquad❖ \: \sf \: - 2(9 + 5)`

`\qquad❖ \: \sf \: - 2 * 14`

`\qquad❖ \: \sf \: - 28`

`\qquad \large \sf {Conclusion} :`

• -2(b² - 5c) = -28