Square of (2x-1) = square of (3-x)

Square of (2x-1) = square of (3-x)

The original formula is equivalent to: 4xx-4x + 1 = 9-6x + XX is equivalent to: 3xx + 2x-8 = 0 is equivalent to (x + 2) (3x-4) = 0 is equivalent to x + 2 = 0 or 3x-4 = 0 is equivalent to x = - 2 or x = 4 / 3

Tree planting day composition 300 words

A few days ago, my mother planned to take me to plant trees on the other side of Qiantang River on March 12. However, I suddenly had a high fever, which made me unable to go. I'm very sorry. I wanted to plant a tree on tree planting day and let it grow with me

Urgent 500 word composition (about cartoon characters) better, fast, give an hour

One day, he had a headache again. It turned out that the Jade Emperor was always not at ease with him. He put on a gold hoop for him. He had to recite a tight hoop mantra once in ten and a half days to make him have a headache and remind him not to make trouble in heaven

Ask 500 words composition, I from__ Learning Chinese

I learned Chinese from my life. From childhood to adulthood, I always think that Chinese in textbooks is more noble. Especially after reading Mr. Yu Qiuyu's "where is the country", I was deeply moved by his delicate and lyrical writing style. I think: this may be the highest level of Chinese! For this unchangeable concept from childhood to adulthood, I firmly believe that

I learned 500 words of Chinese composition without punctuation from

Once heard such a sentence: the words under the pen are always the voice of your heart. Where does this voice come from? It is the true expression of your heart feelings. Where does this emotion come from? That is life. The trace of Chinese in life is everywhere, and the learning of Chinese is inseparable from life. Life is like a treasure book of knowledge, and you want to get that one by one

In my eyes, Chinese is about 500 words

Chinese class is an indispensable course for us. Today, let's talk about "Chinese class in my eyes". The Chinese class in my eyes is that the teacher leads us into a lush forest. I stop by a colorful stream and sit there to listen to the goddess of wisdom telling us about magical stories

Composition of 400-500 words in junior middle school

5x (square of x-2x-4) + square of X (x-1)

5x(x²-2x-4)+x²(x-1)
=5x³-10x²-20x+x³-x²
=6x³-11x²-20x
=x(6x²-11x-20)

Find the range (0) of y = 2x-5x square

y=2x-5x^2=-5(x-1/5)^2+1/5
When x = 1 / 5, y is the maximum value of 1 / 5
When X - > 0, Y - > 0
When X - > 2 / 5, Y - > 0
The range of Y is (0,1 / 5)

2X square - 5x + 5 = 0, find the algebraic formula (15x square - 18x + 9) - (- 3x square + 19x-31) - 8x =?

(15x squared - 18x + 9) - (- 3x squared + 19x-31) - 8x
=18x^2-45x+40
=18x^2-45x+45-5
=9(2x^2-5x+5)-5
=-5