If 2a^2 +3^1a - 5a^2= 9, then a-a^2=

3.

Explanation:

1) Given expression: 2a² + 3a - 5a² = 9

2) Combine like terms: -3a² + 3a = 9

3) Division property of equalities (divide both sides by 3): - a² + a = 3

4) Rearrange: a - a² = 3

That is the answer requested.

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

4+3x hope you like mark as brainliest✔