Question

Применить формулу 1) 36а²-49= 2)-81+25у²= 3)47²-37²= 4)в²-⁴/9 5)64-25х² 6)-49а²+16в² 7)53²-63² 8)25/49-р²

Answer 1

Ответ:

$1)(6a-7)(6a+7)$

$2)(5y-9)*(5y+9)$

$3)(47-37)(47+37)=840$

$4)???$

$5)(8-5x)(8+5x)$

$6)(4b-7a)(4b+7a)$

$7)(53-63)(53+63)=-1160$

$8)\frac{1}{49} (5-7p)(5+7p)$

Answer 2

Ответ:

1) (6a-7)(6a+7)

2) (5y-9)(5y+9)

3) (47-37)(47+37)=840

4) 1/9b²

5) (8-5x)(8+5x)

6) (4b-7a)(4b+7a)

7) (53-63)(53+63)=-1160

8) 1/49•(5-7p)(5+7p)=49:(5-7p)(5+7p)

Answer 3

Sure, let's simplify each of the given expressions:

1. 36a² - 49:

We can use the difference of squares formula, which states that a² - b² = (a + b)(a - b).

So, in this case, 36a² - 49 can be written as (6a + 7)(6a - 7).

2. -81 + 25y²:

This expression is already simplified.

3. 47² - 37²:

This is also a difference of squares. 47² - 37² can be written as (47 + 37)(47 - 37) = 84 * 10 = 840.

4. v² - ⁴/9:

It looks like there might be a formatting issue with this expression. I'm assuming you meant v² - 4/9. If so, this can be written as a difference of squares as well: (v + 2/3)(v - 2/3).

5. 64 - 25x²:

This is also a difference of squares. 64 - 25x² can be written as (8 + 5x)(8 - 5x).

6. -49a² + 16b²:

This expression is already simplified.

7. 53² - 63²:

This is a difference of squares. 53² - 63² can be written as (53 + 63)(53 - 63) = 116 * -10 = -1160.

8. 25/49 - p²:

This expression is already simplified.

Please double-check the fourth expression (number 4) to ensure there are no typos or missing information. If you meant something else, feel free to clarify, and I'll be happy to help!