powerpoint presentation

1. MS. G. MARTIN
ACTIVITY:
The Square of Trinomial

2. 1. Find the product of (x + y – 3)2.

3. 1. Find the product of (x + y – 3)2.
Solution:
Using the formula of F2 + M2 + L2 + 2FM + 2FL + 2ML
F2 = (x)2 = x2
M2 = (y)2 = y2
L2 = (-3)2 = 9
2FM = 2(x . y) = 2xy
2FL = 2(x . -3) = -6x
2ML = 2(y . -3) = -6y
= x2 + y2 + 9 + 2xy – 6x – 6y
= x2 + 2xy + y2 – 6x – 6y + 9

4. 2. Solve (m -2n + 4)2.

5. 2. Solve (m -2n + 4)2.
Solution:
Using the formula of F2 + M2 + L2 + 2FM + 2FL + 2ML
F2 = (m)2 = m2
M2 = (-2n)2 = 4n2
L2 = (4)2 = 16
2FM = 2(m . -2n) = -4mn
2FL = 2(m . 4) = 8m
2ML = 2(-2n . 4) = -16n
= m2 + 4n2 + 16 – 4mn + 8m – 16n
= m2 - 4mn + 4n2 + 8m – 16n + 16

6. 3. Solve (x2 + x + 5)2.

7. 3. Solve (x2 + x + 5)2.
Solution:
Using the formula of
F2 + M2 + L2 + 2FM + 2FL + 2ML
F2 = (x2)2 = x4
M2 = (x)2 = x2
L2 = (5)2 = 25
2FM = 2(x2 . x) = 2x3
2FL = 2(x2 . 5) = 10x2
2ML = 2(x . 5) = 10x
= x4 + x2 + 25 + 2x3 + 10x2 + 10x
= x4 + 2x3 + 11x2 + 10x + 25

8. Thank You!