Answer:
x=3,5
Explanation:
x2−8x+15=0
Try to express the terms of the equation in square form.
Adding 16 both sides of the equation,
(x2−2⋅x⋅4+42)+15=16
or,(x−4)2+15−16=0
or,(x−4)2−1=0
or,(x−4)2−12=0
This is the a2−b2=(a+b)(a−b)form.
(x−4+1)(x−4−1)=0
or,(x−3)(x−5)=0
Now, equate both the terms to zero since both of them when multiplied, give zero.
Either,
x−3=0
∴x=3
Or,
x−5=0
∴x=5
Ans:x=3,5 Hope this helpsXD...!!
Answer: -6.7
Step-by-step explanation:
64.3−(3)(23)−2
=−6.7
Answer:
15
Step-by-step explanation:
Answer:
52 units squared
Step-by-step explanation:
Answer:
100
Step-by-step explanation:
Rounding to the nearest hundred means using the answer that is closest to the amount
94 is closest to 100.
