Question

Use suitable identities to find the following products
(i) (x+4)(x+10)​

Answer 1

Answer:

(x + a)(x + b)​ = x² + (a + b)x + ab

∴ (x + 4)(x + 10)​ = x² + (4 + 10)x + (4)×(10)

                          = x² + 14x + 40

∴ (x + 4)(x + 10) = x² + 14x + 40

Answer 2

Answer:

$\huge \underline \mathfrak \red{Answer}$

$→ (x+4)(x+10) \\ (x+a)(x+b)= {x}^{2} +(a+b)x+ab \\ {x}^{2} +(4+10)x+(4)(10) \\ {x}^{2} +(14)x+40 \\ {x}^{2} +14x+40$