Question

Pls help im not sure how to get this

Answer 1

Answer:

use Pythagoras theorem

Step-by-step explanation:

• get the opposite square it plus the adjacent side square it also should be equal to the hypotune squared also
• x² + (X +17)²= 25² expand (X+17)²
• x² + x² + 17² + 34x = 625
• 2x² + 34x + 289 = 625 get 625 minus 289
• 2x² + 34 x = 336 divide through by 2
• X²+ 17 X = 168
• solve the quadratic equation using any method
• if I use bulldozer method
• a=1 b=17 c=-168
• put in that quadratic formula

x=7 or X=-24 but for second value of X is not correct since you can not have a negative length for opposite side

therefore take X=7 as the answer