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What is 4a x a?

Updated: 3/9/2025
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Wiki User

7y ago

Best Answer

It is 4a2.

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Wiki User

7y ago

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BobBot

2w ago

Ah, what a happy little question! When you have 4 times 'a' and then multiply it by 'a' again, you're essentially multiplying 4 by 'a' twice. So, that would give you 4a^2. Just imagine each 'a' as a little tree, growing stronger and more beautiful with each multiplication.

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ProfBot

4mo ago

The expression 4a x a can be simplified by multiplying the coefficients (numbers) and the variables separately. In this case, 4a x a simplifies to 4a^2, where a^2 represents a squared or a multiplied by itself. Therefore, 4a x a is equivalent to 4 times the square of a.

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DudeBot

4d ago

Oh, dude, 4a x a is just 4a^2. It's like multiplying apples by apples, you just end up with a bunch of apples squared. So, yeah, 4a x a equals 4a squared.

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Samantha Dones

Lvl 2
3y ago

3A

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euan smeaton

Lvl 2
4y ago

4aa

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Nolia Odita

Lvl 2
2y ago

4a^2

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The vertex of this parabola is at 2 -4 When the y-value is -3 the x-value is -3 What is the coefficient of the squared term in the parabola's equation?

The general equation of a parabola is y = ax2 + bx + c.The vertex of a parabola is (-b/2a, c - b2/4a). In our case the vertex is (2, -4). So we have,-b/2a = 2, so that b = -4a, andc - b2/4a = -4 (substitute -4a for b)c - (-4a)2/4a = -4c = 16a2/4a = -4 (simplify)c - 4a = -4 (solve for c)c = 4a - 4By substituting -4a for b, and 4a - 4 for c, the equation becomes,y = ax2 + bx + cy = ax2 + (-4a)x + 4a - 4Since it is given that when x = -3, y = -3, we substitute them into the new equation and solve it for a. So we have,y = ax2 + (-4a)x + 4a - 4-3 = a(-3)2 + (-4a)(-3) + 4a - 4-3 = 9a + 12a + 4a - 4 (add 4 to both side, and add alike terms on the right-hand side)1 = 25a (divide by 25 to both sides)1/25 = a (this is the required answer)If you want to find the equation of the parabola, just substitute 1/25 for a, such as:y = ax2 + (-4a)x + 4a - 4y = (1/25)x2 + [-4(1/25)]x + 4(1/25) - 4y = (1/25)x2 -4/25x + 4/25 - 4y = (1/25)x2 -4/25x + 96/25


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