7p+5q=-3, p=1 7Xp+5q=-3 7+5q=-3 5p=-10 p=-2
7+5q = -3 5q = -3-7 5q =-10 q = -2
p4 - 7p2 + p + 1 = p4 - 3p3 + 3p3 - 9p2 + 2p2 - 6p + 7p - 21 + 22 = p3(p -3) + 392(p - 3) + 2p(p - 3) + 7(p - 3) + 22 = (p-3)(p3 + 39p2 + 2p + 7) + 22 So (p4 - 7p2 + p + 1) / (p-3) = (p3 + 39p2 + 2p + 7) + 22/(p - 3)
p = -1
2(3+p)
(3*5)+(4*-2) = 7
7p+5q=-3, p=1 7Xp+5q=-3 7+5q=-3 5p=-10 p=-2
7+5q = -3 5q = -3-7 5q =-10 q = -2
p4 - 7p2 + p + 1 = p4 - 3p3 + 3p3 - 9p2 + 2p2 - 6p + 7p - 21 + 22 = p3(p -3) + 392(p - 3) + 2p(p - 3) + 7(p - 3) + 22 = (p-3)(p3 + 39p2 + 2p + 7) + 22 So (p4 - 7p2 + p + 1) / (p-3) = (p3 + 39p2 + 2p + 7) + 22/(p - 3)
P=2(l+w) P=2(7+3) P=2(10) P=20
p = -1
2(3+p)
Look at it this way: If p = 1, then 7p = 7. What plus 7 equals -3? Adding 7 to -10 would equal -3, so all we have to figure out is what times 5 would equal -10. 5 times -2 would equal -10 so q equals -2.
4p+2 = 3p-7 4p-3p = -7-2 p = -9
The answer is 380, I hope. :P
Commutative Property of Addition
p + (-2) = 1 so p - 2 = 1 Add two to both sides: p = 3