Answer :
We start with the two expressions:
[tex]$$-11x^2 + 1.4x - 3 \quad \text{and} \quad 4x^2 - 2.7x + 8.$$[/tex]
1. Combine the [tex]$x^2$[/tex] terms:
[tex]$$-11x^2 + 4x^2 = -7x^2.$$[/tex]
2. Combine the [tex]$x$[/tex] terms:
[tex]$$1.4x - 2.7x = -1.3x.$$[/tex]
3. Combine the constant terms:
[tex]$$-3 + 8 = 5.$$[/tex]
Thus, the combined expression is:
[tex]$$-7x^2 - 1.3x + 5.$$[/tex]
This expression corresponds to option A.
[tex]$$-11x^2 + 1.4x - 3 \quad \text{and} \quad 4x^2 - 2.7x + 8.$$[/tex]
1. Combine the [tex]$x^2$[/tex] terms:
[tex]$$-11x^2 + 4x^2 = -7x^2.$$[/tex]
2. Combine the [tex]$x$[/tex] terms:
[tex]$$1.4x - 2.7x = -1.3x.$$[/tex]
3. Combine the constant terms:
[tex]$$-3 + 8 = 5.$$[/tex]
Thus, the combined expression is:
[tex]$$-7x^2 - 1.3x + 5.$$[/tex]
This expression corresponds to option A.
