Question

X: 4x^2+16 -20=0 What is x

Answer 1

Answer:

$\boxed{\sf x = 1, \ x = -5}$

Explanation:

$\rightarrow \sf 4x^2 + 16x - 20 = 0$

$\rightarrow \sf 4(x^2 + 4x - 5) = 0$

$\rightarrow \sf x^2 + 4x - 5 = 0$

$\rightarrow \sf x^2 + 5x -x- 5 = 0$

$\rightarrow \sf x(x + 5) -1(x+ 5) = 0$

$\rightarrow \sf (x-1)(x+ 5) = 0$

$\rightarrow \sf x = 1, \ x = -5$

Answer 2

The answer to X: 4x^2+16 -20=0 is that d equals 5
X=5