Select all the expressions that are equivalent to x2+4x. (^2 means raising something to the 2nd power.) Group of answer choices

x(x+4)

(x+2)^2

(x+x)(x+4)

(x+2)^2-4

(x+4)x

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

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first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.

should have been evaluated with one odd value and one even value. the expressions have equivalent values when . when , the first expression has a value of 3 and the second

step-by-step explanation: