Question

Use a suitable identity to find the product.
(x+5)(x+5)

Answer 1

Answer:

We know (x−5)(x−5)=(x−5)2

We know (x−5)(x−5)=(x−5)2Now using identity (x−y)2=x2−2xy+y2

We know (x−5)(x−5)=(x−5)2Now using identity (x−y)2=x2−2xy+y2Here x=x and y=5

We know (x−5)(x−5)=(x−5)2Now using identity (x−y)2=x2−2xy+y2Here x=x and y=5(x−5)2=(x)2−2×x×5+(5)2

We know (x−5)(x−5)=(x−5)2Now using identity (x−y)2=x2−2xy+y2Here x=x and y=5(x−5)2=(x)2−2×x×5+(5)2=x2−10x+25

Answer 2

Answer:

(x+5)(x+5) = x² + 10x +25

Step-by-step explanation:

(x+5)(x+5) = (x+5)²

Identity to be used : (a+b)² = a²+b²+2ab

here : a= x ; b = 5

(x+5)²= x²+ 5² + 2(5)x

= x² + 10x +25