Find the roots of the equation: y=4 (X+4) ^2 - 12

Question

Mathematics

Abdullah Butler

6 March, 03:54

Find the roots of the equation: y=4 (X+4) ^2 - 12

+3

Answers (1)

Know the Answer?

Darius Savage · Answer 1

0=4 (x²+8x+16) - 12

0=4x²+32x+64-12

0=4x²+32x+52

0=x²+8x+13

D=b²-4ac

D=64-52=12

x = (-b-√D) / 2a

x = (-b+√D) / 2a

x = (-8-2√3) / 2 = (-2 (4+√3)) / 2 = - (4+√3)

AND

x = (-8+2√3) / 2=-2 (4-√3) / 2 = - (4-√3)