Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

what is the sum of the two polynomials? $7x^3 + 4x^2 + 3x + 12$ $+\\ 9x…

Question

what is the sum of the two polynomials?
$7x^3 + 4x^2 + 3x + 12$
$+\\ 9x^3 - 2x^2 + 5x - 8$
a) $16x^3 + 2x^2 + 8x + 4$
b) $16x^3 - 6x^2 + 8x - 20$
c) $16x^3 - 2x^2 + 8x - 4$
d) $16x^3 + 6x^2 + 8x + 20$

Explanation:

Step1: Sumar términos de \( x^3 \)

\( 7x^3 + 9x^3 = 16x^3 \)

Step2: Sumar términos de \( x^2 \)

\( 4x^2 - 2x^2 = 2x^2 \)

Step3: Sumar términos de \( x \)

\( 3x + 5x = 8x \)

Step4: Sumar términos constantes

\( 12 - 8 = 4 \)

Step5: Combinar todos los términos

\( 16x^3 + 2x^2 + 8x + 4 \)

Answer:

A) \( 16x^3 + 2x^2 + 8x + 4 \)