Answer:
−x^3−4x^2+2x+7
Step-by-step explanation:
Hey there!!
Basic formula :
... a² - b² = ( a + b ) ( a - b )
Equation given :
... 81x² - 25
... ( 9x )² - ( 5 )²
... ( 9x + 5 ) ( 9x - 5 )
Hope it helps!!
Answer:
6√x
Step-by-step explanation:
9√x - 3√x = 6√x
Answer:
L=35cm
Step-by-step explanation:
Perimeter is 2(L+w)
156cm=2*(43+L)
L=35cm
Answer:
12
Step-by-step explanation: