Answer:The multiplicative inverse of a number is the number by which when we multiply that number then final result is 1. Let , multiplicative inverse of ( -3/7 ) is x
Step-by-step explanation:
(2y - x )² = (x-2y)²
So x(2y - x )² + 2x²(x - 2y)
= x(x-2y)² + 2x²( x - 2y )
= x(x-2y)[(x-2y) + 2x]
= x(x-2y)(3x-2y)
please check for mistakes.
but this is the key idea: (2y-x)²=(x-2y)².
Answer:
90+33+7x+8 = 180 so 180-131 = 7x so 7x = 49 or x = 7.