Expand: (a+2 b+5 c)^2 - Vidyadip

Question

Expand: $(a+2 b+5 c)^2$

✓

Answer

$(a+2 b+5 c)^2$
$=(a)^2+(2 b)^2+(5 c)^2+2(a)+2(2 b)(5 c)+2(5 c)(a)$
$=a^2+4 b^2+25 c^2+4 a b+20 b c+10 a c$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "1 Marks Question" from Factorisation of Polynomials→Factorisation of Polynomials — all question types→Maths STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Find the curved surface area of a right circular cone whose slant height is $10\ cm$ and base radius is $7\ cm$

Which of the following expression are polynomials? $\frac{(\text{x}-2)(\text{x}-4)}{\text{x}}$

Given three distinct points in a plane, how many lines can be drawn by joining them?

Write the equation of the line that is parallel to $y-$axis and passing through the point: $(-4, -3)$

Use suitable identity to find the product $\left( {{y^2} + \frac{3}{2}} \right)\left( {{y^2} - \frac{3}{2}} \right)$

Find the remainder when $x^3+3 x^2+3 x+1$ is divided by $5+2 x$.

Find:${64^{\frac{1}{5}}}$

Without plotting the points indicate the quadrant in which they will lie, if:
Ordinate is $5$ and abscissa is $-3$

Classify the following polynomials as linear, quadratic, cubic and biquadratic polynomials:
$x+x^2+4$

Write the degree of the polynomial: $5 x^3+4 x^2+7 x$