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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Find and correct the errors in the statement: (2x)2 + 4(2x) + 7 = 2x2 + 8x + 7
Solution:
An equation is a mathematical statement with an 'equal to' symbol between two algebraic expressions that have equal values.
Given,
(2x)2 + 4(2x) + 7 = 2x2 + 8x + 7
Solving LHS we get,
(2x)2 + 4(2x) + 7
= 4x2 + 8x + 7
But RHS = 2x2 + 8x + 7
Thus, L.H .S. ≠ R.H.S.
The correct statement is (2x)2 + 4(2x) + 7 = 4x2 + 8x + 7
☛ Check: NCERT Solutions for Class 8 Maths Chapter 14
Video Solution:
Find and correct the errors in the statement: (2x)² + 4(2x) + 7 = 2x² + 8x + 7
Class 8 Maths NCERT Solutions Chapter 14 Exercise 14.4 Question 7
Summary:
Find and correct the errors in the statement: (2x)2 + 4(2x) + 7 = 2x2 + 8x + 7. The correct statement is (2x)2 + 4(2x) + 7 = 4x2 + 8x + 7
☛ Related Questions:
- Find and correct the errors in the statement: (2x)2 + 5x = 4x + 5x = 9x
- Find and correct the errors in the statement: (3x + 2)2 = 3x2 + 6x + 4
- Find and correct the errors in the following mathematical statement. Substituting x = -3 in (a) x2+ 5x + 4 gives (-3)2 + 5(-3) + 4 = 9 + 2 + 4 = 15 (b) x2 - 5x + 4 gives (-3)2 - 5(-3) + 4 = 9 - 15 + 4 = -2 (c) x2 + 5x gives (-3)2 + 5(-3) = -9 - 15 = -24
- Find and correct the errors in the statement: (y - 3)2 = y2 - 9
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