16k^2 + 16k + 4
We can first start off by dividing every term by 4:
4 (4k^2 + 4k + 1)
to factor, you find which two number you can multiply with each other to get the middle term. So 2 and 2 to get 4. Substitute that into the equation
4 (4k^2 + 2k + 2k + 1)
the first two terms become a group and the last 2 terms become a group. Factor like terms out of the two groups.
4 (2k (2k + 1) + 1 (2k + 1))
4 (2k + 1)(2k + 1)
Answer:
BM = 30 cm, DL = 42 cm
Step-by-step explanation:
The area of the parallelogram = 1470 cm², AB = 35 cm, AD = 49 cm, DL and BM are the heights on sides AB and AD.
area of the parallelogram = base × height = AD × height of AD = AD × BM
⇒ 1470 cm² = 49 cm × BM
BM = 1470 cm² / 49 cm = 30 cm
BM = 30 cm
Also:
area of the parallelogram = base × height = AB × height of AB = AB × DL
⇒ 1470 cm² = 35 cm × DL
DL = 1470 cm² / 35 cm = 42 cm
DL = 42 cm
