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IRINA_888 [86]
3 years ago
14

Simplify: i) (a + b)(5a – 3b) + (a – 3b)(a – b) ii) (a – b) (a2 + b2 + ab) – (a + b) (a2 + b2 – ab) iii) (b2 – 49) (b + 7) + 343

Mathematics
1 answer:
marin [14]3 years ago
8 0

Answer:

plz mark brainliest✌️✌️

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What value of x is in the solution set of –5x – 15 > 10 + 20x?
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Hello,

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6 0
4 years ago
I need help quickly please!
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3 years ago
The coordinates of the vertices of △PQR are P (0, 1), Q (0, 0),
torisob [31]

Step-by-step explanation:

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4 0
3 years ago
Pemdas please help explain too please
saul85 [17]

Parenthesis

Exponent

Multiplication

Division

Addition

Subtraction

(left to right)

4²-(3.1+6.4)+4.5

According to PEMDAS, we will do what is inside the parenthesis.

3.1+6.4 = 9.5

<em>4²-9.5+4.5</em>

Then we do figure out the exponent.

4² =  (4)(4) = 16

<em>16-9.5+4.5</em>

Then we do subtraction then addition because PEMDAS also tells us we should do adding and subtracting from left to right. In this expression, subtracting is on the left side so we should do that first.

16-9.5 = 6.5

<em>6.5 + 4.5 = 11</em>

11 is your answer :)

6 0
3 years ago
Read 2 more answers
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