Question

álgebra es para hoy pless​

Answer 1

Respuestas:

7.

El mayor exponente de "y" es 2b + 4.

$2b + 4 = 16\\2b = 16 - 4\\2b = 12\\b = \frac{12}{2} \\b = 6$

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El punto "·" es el signo de multiplicación.

8.

(9x + 2)² = $\left(9x\right)^2+2\cdot \:9x\cdot \:2+2^2 = 81x^2+36x+4$

(11x-24)²= $\left(11x\right)^2-2\cdot \:11x\cdot \:24+24^2=121x^2-528x+576$

(13x-12)²= $\left(13x\right)^2-2\cdot \:13x\cdot \:12+12^2=169x^2-312x+144$

(10x+34)² =$\left(10x\right)^2+2\cdot \:10x\cdot \:34+34^2=100x^2+680x+1156$

9.

(x+18)²=$x^2+2x\cdot \:18+18^2=x^2+36x+324$

(x-10)²=$x^2-2x\cdot \:10+10^2=x^2-20x+100$

(x-16)²=$x^2-2x\cdot \:16+16^2=x^2-32x+256$

(x+23)² =$x^2+2x\cdot \:23+23^2=x^2+46x+529$

10.

a) (3x²-14)² = $\left(3x^2\right)^2-2\cdot \:3x^2\cdot \:14+14^2=9x^4-84x^2+196$

b) (7x³ +12)² = $\left(7x^3\right)^2+2\cdot \:7x^3\cdot \:12+12^2=49x^6+168x^3+144$

c) (5x⁴-13)² = $\left(5x^4\right)^2-2\cdot \:5x^4\cdot \:13+13^2=25x^8-130x^4+169$

d) (6x³-11)² = $\left(6x^3\right)^2-2\cdot \:6x^3\cdot \:11+11^2=36x^6-132x^3+121$