please po pa answer kung di nyo alam wag na lang po sagutan kase nakaka perwisyo po samin ung mga student na gusto makatapos At kung alam nyo naman po pakisagot na lang
-80 points
-Heart
-follow
-Brainliest
yan po gagawin ko kapag nasagot ng tama grade 8 math po ito
Share
Answer<3
A. Factor the following completely
1. n2 + 14n + 49n²
2. a3 - 125 = 122
3. 9b2 - c2
4. 2×2+5× +3 = 19
5. 3×2-30× + 75 = 2244
B. Solve the following problems
1. The square of a number eqquals nine times that number. Find the number
- The number is 9
Checking:
x²= 9×
(9)²= 9(9)
81=81✔
2. A rectagular plot is 6 meters longer than its width the area of the plot is 16 square meters. Find the length and width of the plot
-Width = 2 meters
Length = 8 meters
Explanation:
Let, width = x
length = x + 6
area = 16 m²
Translate,
Area = Length x Width
16 = x(x + 6)
Use FOIL,
16 = x² + 6x
Rearrange,
x² + 6x - 16 = 0
Factor,
x² + 8x - 2x - 16 = 0
(x - 2) (x + 8) = 0
Find the roots,
x - 2 = 0
x1 = 2
x + 8 = 0
x2 = -8
Disregard the negative root since we are dealing with measurements
Substitute the positive root,
width = 2 meters
length = 2 + 6 = 8 meters
Please be safe, becareful❤❤
I hope this helps❤