$(x+a)^2=x^2+2\cdot x\cdot a+a^2\ \ \ \Rightarrow \ \ \ \ 2\cdot x\cdot a=14x\ \ \ \Leftrightarrow\ \ \ 2a=14\ /:2\\\\a=7\ \ \ \Rightarrow\ \ \ a^2=7^2=49\\\\\ \ \ \Rightarrow\ \ \ a\ perfect\ square\ trinomial=(x+7)^2$

6 0

3 years ago

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Anna is planning on making a circular garden. If the diameter of the garden is 21 meters, what is the circumference?

Ksenya-84 [330]

The answer is A. 65.94m

3 0

4 years ago

Find the surface area of the rectangular prism

nika2105 [10]

The team go skirt pop pop pop pop pop pop...

8 0

3 years ago

Factor the following expression. x^2+9x+8

Nadusha1986 [10]

Answer:

(x+1)(x+8)

Step-by-step explanation:

I just got multiples of 8 that when added equal to 9. In this case, it was 1 and 8 which when you multiply is 8 and when you add, it's 9.

8 0

3 years ago