Question

4(x+5)² - (2x+1)²= 3(x - 5) +180​

Answer 1

Answer:

Hey!☺️

4(x+5)² - (2x+1)²= 3(x - 5) +180

$({4x + 20})^{2} - ( {4x}^{2} + 1) = 3x - 15 + 180$

$4 + 399 = 3x + 165$

$403 = 3x + 165$

$403 - 165 = 3x$

$238 = 3x$

$x = 79.8$

Hope it will be helpful ✌️

Answer 2

Answer:

$\Large{\Underline{\Underline{\bf{Question}}}}$

$\fbox{Solution}$

4(x+5)² - (2x+1)²= 3(x - 5) +180

({4x + 20})^{2} - ( {4x}^{2} + 1) = 3x - 15 + 180(4x+20)^{2}−(4x^{2}+1)=3x−15+180

4 + 399 = 3x + 1654+399=3x+165

403 = 3x + 165403=3x+165

403 - 165 = 3x403−165=3x

$\red{238 = 3x238=3x}$

$\fbox{x = 79.8x=79.8}$