(-x+9)(-x-9) - prefect square
(xy + x)(xy + x) - perfect square
(2x-3)(-3+2x) - not a perfect square
(16- x²)(x2 – 16) - not a perfect square
(4y? +25)(25+4y?) - not a perfect square
It's obviously the second one
Answer:
15
Step-by-step explanation:
when x=6 plug it in to the equation and you would get 2(6)+3 which is 12+3 which is 15
X= 10
complementary angles= 90° so 90-50=40
40 ÷ 4= 10
Answer:
Therefore, x = -2m+4/-n-1
