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question watch video perform the operation. $(2x^2 - 3x + 1) + (7x^2 + …

Question

question
watch video
perform the operation.
$(2x^2 - 3x + 1) + (7x^2 + 10x + 8)$

Explanation:

Step1: Agrupar términos semejantes

$(2x^2 + 7x^2) + (-3x + 10x) + (1 + 8)$

Step2: Sumar coeficientes de $x^2$

$2 + 7 = 9$, así que $9x^2$

Step3: Sumar coeficientes de $x$

$-3 + 10 = 7$, así que $7x$

Step4: Sumar términos constantes

$1 + 8 = 9$

Answer:

$9x^2 + 7x + 9$