Question

what is the value of each expression when x=-4
(ii) 3(2x+1)​

Answer 1

Answer:

put--x=4

3(2×4+1)

3×8+1

24+1

=25

Answer 2

$\Huge\mathfrak\orange{AnSwEr}$

${}$

$\bf{{\underline{To~find}}:}$

• $\sf{3(2x+1)}$ when $\sf{x=-4}$

$\bf{{\underline{Solution}}:}$

$\tt{~~~~~~~~~3(2x+1)}$

$\tt{:\longrightarrow 3[2(-4)+1]}$

$\tt{:\longrightarrow 2(-8+1)}$

$\tt{:\longrightarrow 2(-7)}$

$\tt{:\longrightarrow \orange{\underline{\boxed{\bf -14}}}}$

$\bf\therefore{{\underline{Required~answer}}:}$

• $\sf{3(2x+1)}$ when $\sf{x=-4}$ is $\sf{ \orange{\underline{\boxed{\bf -14}}}}$