Expand.
Your answer should be a polynomial in standard form.
(-8a^2 – 1) (3a^2– 5) =

Rewrite using the commutative property of multiplication.

−8⋅3(a2a2)−8a2⋅−5−1(3a2)−1⋅−5

Multiply a 2 by a 2 by adding the exponents.

Use the power rule a m a n = a m + n to combine exponents.

− 8 ⋅ 3 a 2 + 2 − 8 a 2 ⋅ − 5 − 1 ( 3 a 2 ) − 1 ⋅ − 5

Multiply−8by3.−24a4−8a2⋅−5−1(3a2)−1⋅−5

Multiply−5by−8.−24a4+40a2−1(3a2)−1⋅−5

Multiply3by−1.−24a4+40a2−3a2−1⋅−5

Multiply−1by−5.−24a4+40a2−3a2+5

Subtract3a2from40a2.−24a4+37a2+5

Step-by-step explanation: Please hep me with this if you know!

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.