the value of 1 square minus 2 square + 3 square - 4 square + 5 square minus x square + 7 square minus 8 square + 9 square minus 10 square is
Answers
1-4+9-16+25-x²+49-64+81-100
-19-x²=0
x=√19
Concept:
Exponents are used to describe expressions that are made up of the same factor being multiplied by itself repeatedly. It is also known as indices or increased to the power of a number.
Consider the number 52 as an example; the base of the expression is 5, and the exponent is 2.
The expression's value is obtained by multiplying the base by the number of powers, times one. Since there is a power of 2 in the previous example, the value becomes 5 x 5 = 25.
2² = 2 raised to power 2 = 2 x 2 = 4
5² = 5 raised to power 2 = 5 x 5 = 25
Given:
1²-2²+3²-4²+5²-x²+7²-8²+9²-10²
Find:
Find the value of 1²-2²+3²-4²+5²-x²+7²-8²+9²-10²
Solution:
1²-2²+3²-4²+5²-x²+7²-8²+9²-10²
=1-4+9-16+25-x²+49-64+81-100
=19-x²
Therefore, the answer is 19-x²
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