Question

Can someone help with either of these questions

Answer 1

4.

$\frac{5(14-2)^{2}}{2}$

By the order of operations (parentheses, exponents, multiplication, division, addition, subtraction), we must get rid of the parentheses first.

Subtract 2 from 14.

$\frac{5*12^{2}}{2}$

Next is exponents. Square 12.

$\frac{5*144}{2}$

Multiply.

$\frac{720}{2}$

Divide.

Answer: 360

5.

u + xy if u = 18, x = 10, and y = 8

Substitute.

u + xy

18 + 10(8)

Multiply.

18 + 80

Add.

98

Answer: 98

Answer 2

5(14 - 2)^2 / 2

= 5*12^2 / 2

= 5 * 144 / 2

= 5 * 72

= 360 answer