Question

(4x+5y) (4x+5y) please with full steps ​

Answer 1

(4x+5y)²

4x²+5y²+40xy

is the ans

Answer 2

Answer:

16x²+25y²+40xy

Step-by-step explanation:

(4x+5y)(4x+5y)

=(4x+5y)² {(a+b)²=a²+b²+2ab}

therefore, (4x+5y)²=(4x)²+(5y)²+2(4x)(5y)

= 16x²+25y²+40xy