$30x^2 + 44x +16 = 0\\\\2(15x^2 + 22 + 8) = 0\\\\2(15x^2 + 12x + 10x + 8) = 0\\\\2(3x(5x + 4)+2(5x + 4))=0\\\\2((3x + 2)(5x + 4)) = 0\\\\Zeroes : 3x + 2 = 0 => x = \frac{-2}{3}\\$

$5x+ 4 = 0 => x = \frac{-4}{5}$

$10x^2 + 60x +80 = 0\\\\10(x^2 + 6x + 8)= 0\\\\10(x^2 + 4x + 2x + 8)=0\\\\10(x(x+4)+2(x+4))=0\\\\10((x+2)(x+4))=0\\\\Zeroes : x + 2 = 0 =>x = -2$

$x + 4 = 0 => x= -4$

3 0

3 years ago

Algebra 1

Harlamova29_29 [7]

Answer:

cl jsjsjsjnsmamansnsnannananann

4 0

2 years ago

Adam is x years old. His father is 25 years older than Adam. His brother is 3 years younger than Adam. The brothers' ages added

djyliett [7]

F=x+25
b=x-3
x+b=25

b) x-3 +x =25
2x=25+3
x=28÷2
x=14
b= 11
f= 39

5 0

3 years ago

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