Question

131)Expand (5x-4y)(5x+4y)
132)Expand(a-b+c)²
133)Expand(2x+3y+4z)²
134)Find the area of square whose side length is 3m+2n-4p
135)Expand (x+5)(x+6)(x+4)

Answer 1

Step-by-step explanation:

at first mark me as brain liest then I will solve the rest ones