4z − 2z(1 + 4) − 36 for z = 5

asked by guest
on Nov 20, 2024 at 7:31 pm



You asked:

Calculate the value of 4z−2z(1+4)−364 z - 2 z \left(1 + 4\right) - 36 when z=5z = 5.

MathBot Answer:

4z−2z(1+4)−36=−664 z - 2 z \left(1 + 4\right) - 36 = -66

−2z(1+4)+4z−36=4⋅5−2⋅(1+4)5−36=−2⋅(1+4)5+20−36=−2⋅52+20−36=−2⋅25+20−36=−50+20−36=−66\begin{aligned}- 2 z \left(1 + 4\right) + 4 z - 36&=4 \cdot 5 - 2 \cdot \left(1 + 4\right) 5 - 36\\&=- 2 \cdot \left(1 + 4\right) 5 + 20 - 36\\&=- 2 \cdot 5^{2} + 20 - 36\\&=- 2 \cdot 25 + 20 - 36\\&=-50 + 20 - 36\\&=-66\end{aligned}


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