Answer:
2 - √7 ≈ -0.64575131
Explanation:
simplify (8 - √112)/4
√112 = √(16 * 7) = √16 * √7 = 4√7
substitute
(8 - √112)/4 = (8 - 4√7)/4
simplify the numerator by dividing each term by 4:
8/4 - (4√7)/4 = 2 - √7/1
write the simplified expression as:
2 - √7 ≈ -0.64575131