CBSE Class 8 Answered
One number is 7 more than another and it's square is 77 more than the square of the smaller number. What are the numbers?
Asked by ritikap.sen21 | 12 Dec, 2018, 07:04: PM
Expert Answer
If one number is x, then another number (x+7)
Square of bigger number is 77 less than the square of smaller number.
(x+7)2 = x2
x2 + 14x + 49 = x2+77
14x + 49 = 77
14x = 28 or x=2
Hence two numbers are 2 and 9
Answered by Thiyagarajan K | 12 Dec, 2018, 10:03: PM
Application Videos
-
Solving Linear Equations in one variable
This video explains the method of finding the solutions of given linear equ... -
Linear Equations to Simpler Form
This video explince the concept of Linear Equations to Simpler Form. -
Equations Reducible to the Linear Form
This video explains the concept of Equations Reducible to the Linear Form. -
Sum of the Measures of the Exterior Angles of a Polygon ...
This video explains the method of finding number of sides of a polygon if t... -
Grouped Frequency Distribution Table
This video explains the method of constructing the Grouped Frequency Distri...
Concept Videos
-
Construction of Rhombus
Construction of rhombus given side and angle, both diagonals -
Construction of squares and rectangles
construction of square given side and diagonals,construction of rectangles -
Quadrilaterals
Definition, elements, angle sum property, classification of quadrilaterals -
Surface Area: Cubes and Cuboids
cubes and cuboids, finding their surface area -
Bar Graphs and Histograms
bar graph, histogram their interpretation,comparison of the two
CBSE 8 - Maths
Asked by tankasalasuresh | 18 May, 2024, 01:52: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by chandrakala.mettu | 17 May, 2024, 08:52: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by cherrynittu2830 | 13 May, 2024, 12:44: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by gpt.pooja | 11 May, 2024, 08:30: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by biswajitpatel88 | 10 May, 2024, 01:54: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by biswajitpatel88 | 10 May, 2024, 10:49: AM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by biswajitpatel88 | 10 May, 2024, 10:49: AM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by seemachaubey1987 | 05 May, 2024, 09:41: AM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by ptech3383 | 04 May, 2024, 06:10: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by sarkarchaitali4001 | 02 May, 2024, 04:11: PM
ANSWERED BY EXPERT
