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pantera1 [17]
4 years ago
6

In your notebook, set up the following subtraction in a vertical format and select the correct answer. Take -4 + 3a 2 from 7a -

a 2.
Mathematics
2 answers:
Komok [63]4 years ago
5 0
ANSWER

4 + 7a - 4{a}^{2}

EXPLANATION

We want to take,

- 4 + 3 {a}^{2}

from

7a - {a}^{2}

Mathematically we can write this statement as,

(7 a - {a}^{2} ) - ( - 4 + 3 {a}^{2} )

We use the distributive property to expand to obtain,

7 a - {a}^{2} + 4 - 3 {a}^{2}

We regroup to obtain,

4 + 7a - {a}^{2} - 3 {a}^{2}

This simplifies to

4 + 7a - 4{a}^{2}
Illusion [34]4 years ago
4 0
Are you sure this question is complete?

(7a - a²)
- (-4 + 3a²)
==========
(7a - a²)
+ (4 - 3a²)
==========
7a + 4 - 4a² = - 4a² + 7a + 4 ...//
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