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No. Because sometimes, there are equations like "3x^2-2x+5" which when you simplify it, it is not a perfect square. You can determine if a trinomial is a perfect square by these steps.

(a) the middle sign can be + or -, but the third sign should be +

(b) the middle coefficient is twice the square root of the first coefficient times the square root of the third coefficient

a² + 14a + 49 => signs are fine, and 14 = 2*√1*√49 => (a+7)²

9z² - 3z + 1 => signs are fine, but 3 ≠ 2*√9*√1

(a) the middle sign can be + or -, but the third sign should be +

(b) the middle coefficient is twice the square root of the first coefficient times the square root of the third coefficient

a² + 14a + 49 => signs are fine, and 14 = 2*√1*√49 => (a+7)²

9z² - 3z + 1 => signs are fine, but 3 ≠ 2*√9*√1

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.

No,becuase there has some that are not perfect

sorry i'm not good in math

>Hope it helps

don't copy my answer,it is based on my mind !!

From: TaengPark

sorry i'm not good in math

>Hope it helps

don't copy my answer,it is based on my mind !!

From: TaengPark