Mathematics

Grade10

Easy

Question

$x squared plus 8 x plus c$ .Find the value of ‘c’ that makes the expression a perfect square trinomial.

12
14
16
18

hint Hint:

$8 over 2 equals 4 text and end text 4 squared equals 16$

The correct answer is: 16

Given the quadratic equation, $x squared plus 8 x plus c$
Let us solve this
Since $8 over 2 equals 4 text and end text 4 squared equals 16$
Now we convert $x squared plus 8 x plus 16$ into binomial squared $open parentheses x space plus space 4 close parentheses squared$
So, here the ‘c’ value is 16, which makes the expression a perfect square trinomial.

The coordinates of the vertex of the parabola, whose equation is y = 2x² + 4x - 5 are:

The other method to find the vertex of a parabola is as We know that the x-coordinate of a vertex, (i.e) h is -b/2a. Now, substitute the x-coordinate value in the given standard form of the parabola equation y=ax2+bx+c, we will get the y-coordinate of a vertex.

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.Find the value of ‘c’ that makes the expression a perfect square trinomial.

12141618

The correct answer is: 16

Given the quadratic equation, Let us solve thisSince Now we convert into binomial squared So, here the ‘c’ value is 16, which makes the expression a perfect square trinomial.

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$x squared plus 8 x plus c$ .Find the value of ‘c’ that makes the expression a perfect square trinomial.

12
14
16
18

The coordinates of the vertex of the parabola, whose equation is y = 2x² + 4x - 5 are:

The coordinates of the vertex of the parabola, whose equation is y = 2x² + 4x - 5 are:

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Find the solution of quadratic equation $8 x squared minus 10 equals 54$ using square roots.

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