Question 3(i)
Simplify:
$(x^{2} - 5) (x + 5) + 25$

Open in App

Solution

$(x^{2} - 5) (x + 5) + 25 = x^{2} (x + 5) - 5 (x + 5) + 25$
$= x^{2} \times x + x^{2} \times 5 - 5 \times x - 5 \times 5 + 25$
$= x^{3} + 5 x^{2} - 5 x - 25 + 25$
$= x^{3} + 5 x^{2} - 5 x$

Suggest Corrections

Similar questions

Question 3(i)
Simplify:
$(x^{2} - 5) (x + 5) + 25$

(x^{2} - 5) (x + 5) + 25

(x - 5) (x + 5) + 25

Factors of

$- x^{3} - 125$

(x^{2} - 5) (x + 5) + 25 = 0

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program