Question

Pls help with the correct answer fast plsmaths congruence of triangle​pls pls pls

Answer 1

Answer:

x = -1 or

x = -7

Step-by-step explanation:

Given DAB and BCD are similar :

2x^2 + 7 = x^2 - 8x make the left side of equation 0 by exporting all terms to right side

2x^2 - x^2 + 8x + 7 = 0 add like terms

x^2 + 8x + 7 = 0

(x + 1) * (x + 7) = 0 in this case x is either -1 or -7