Question

Which shows a perfect square trinomial? 50y^2-4x^2 100-36x^2y^2 16x^2+24xy+9y^2 49x^2-70xy+10y^2 ~ please answer, i will mark brainliest ~

Answer 1

Answer:

3. 16x^2+24xy+9y^2

Step-by-step explanation:

A perfect square trinomial has the form of:

a^2+2ab+b^2= (a+b)^2

Let's see which of the given is equivalent to perfect square

1. 50y^2-4x^2

No, this is not a trinomial

2. 100-36x^2y^2

No, this is not a trinomial

3. 16x^2+24xy+9y^2 = (4x)^2 + 2*4x*3y+ (3y)^2 = (4x+3y)^2

Yes, this is a perfect square

4. 49x^2-70xy+10y^2= (7x)^2- 2*7x*10y + 10y^2

No, this is a trinomial but not a perfect square because 10y^2 is not equal to (10y)^2

As per above, the answer is the 3rd choice

Answer 2

Answer:

C

Step-by-step explanation:

the answer is c, hope this helped :)