Download App

Factorization — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSFactorization1 Mark
MCQ
The value of $49^2$ is:
  • ✓
    $(50)^2 - 2(50) (1) + (1)^2$
  • B
    $(50)^2 + 2 (50) (1) + (1)^2$
  • C
    $(50)^2 - (1)^2$
  • D
    $(50)^2 + (1)^2$
✓

Answer

Correct option: A.
$(50)^2 - 2(50) (1) + (1)^2$
A.  $(50)^2 - 2(50) (1) + (1)^2$
Solution:
$= 49^2 = (50 - 1)^2$
$= (50)^2 - 2(50) (1) + (1)^2$

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 "M.C.Q. [1 Marks Each]" from Factorization→Factorization — all question types→MATHS STD 8 question papers→Gujarat Board STD 8 question papers→Gujarat Board question paper generator→

Similar questions

If $8x - 3 = 25 + 17x,$ then $x$ is:
→
What is the cube of $0.8$?
→
If $22$ workers can complete a work in $6$ days. How many days would be required for $15$ men to complete the same work'?
→
The length and breadth of a rectangle are in the ratio $4 : 3.$ If the diagonal measures $25\ cm$ then the perimeter of the rectangle is:
→
$\sqrt{2 \frac{1}{4}}=?$
→
Tick $(\checkmark)$ the correct answer: $1 - 2ab - (a^2+ b^2) = ?$
→
Tick $(\checkmark)$ the correct answer of the following: Which of the following numbers is not a perfect square?
→
Which of the parallelograms has all sides equal and diagonals bisect each other at right angle?
→
The sum of all exterior angles of a triangle is.
→
The point $(3, 4)$ is at a distance of:
→