The area of a rectangular painting is given by the trinomial x2 + 4x – 21. What are the possible dimensions of the painting? Use factoring.%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0A(x + 7) and (x + 3)%0D%0A(x + 7) and ( x + 3)%0D%0A%0D%0A(x – 7) and (x + 3)%0D%0A(x – 7) and ( x + 3)%0D%0A%0D%0A(x – 7) and (x – 3)%0D%0A(x – 7) and (x – 3)%0D%0A%0D%0A(x + 7) and (x – 3)
To find the dimensions of the painting, we need to factor the given trinomial, x^2 + 4x - 21.
Factoring this trinomial, we can write it as (x + 7)(x - 3).
So, the possible dimensions of the painting are (x + 7) and (x - 3).