3 years ago

Simplify the following: (-1+4)^3+5×7

Mathematics

2 answers:

Leni [432]3 years ago

8 0

(-1 + 4)^3 + 5 * 7 =
3^3 + 5 * 7 =
27 + 35 =
62

Leya [2.2K]3 years ago

7 0

(-1+4)^3 + (5)(7)

(3)^3 + (5)(7)

(27) + (5)(7)

(27) + (35)

62

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Ivenika [448]

$\overline{XS}\cong\overline{YT}\Rightarrow 3m+7=4.2m+5\ \ \ |-7\\\\3m=4.2m-2\ \ \ \ |-4.2m\\\\-1.2m=-2\ \ \ \ |:(-1.2)\\\\m=\dfrac{2}{1.2}\\\\m=\dfrac{20}{12}\\\\m=\dfrac{5}{3}\to m=1\dfrac{2}{3}$

$\overline{YS}\cong\overline{XT}\Rightarrow3\dfrac{1}{2}r+2=2r+5\ \ \ \ |-2\\\\3\dfrac{1}{2}r=2r+3\ \ \ \ |-2r\\\\1\dfrac{1}{2}r=3\ \ \ |\cdot2\\\\3r=6\ \ \ \ |:3\\\\r=2$